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List of works by Ailsa Hart

A New Look at Familial Risk of Inflammatory Bowel Disease in the Ashkenazi Jewish Population

scientific article published on 03 September 2018

A Qualitative Research for Defining Meaningful Attributes for the Treatment of Inflammatory Bowel Disease from the Patient Perspective

scientific article published on 30 January 2020

A Randomized, Double-blind, Placebo-controlled, Parallel-group, Pilot Study of Cannabidiol-rich Botanical Extract in the Symptomatic Treatment of Ulcerative Colitis

scientific article published on 01 March 2018

A blood-based prognostic biomarker in IBD

scientific article published on 27 April 2019

A diagnostic accuracy meta-analysis of endoanal ultrasound and MRI for perianal fistula assessment

scientific article published on May 2012

A global consensus on the classification, diagnosis and multidisciplinary treatment of perianal fistulising Crohn's disease.

scientific article

A mechanistic role for leptin in human dendritic cell migration: differences between ileum and colon in health and Crohn's disease.

scientific article published on 21 November 2012

A multicentre prospective cohort study assessing the effectiveness of budesonide MMX® (Cortiment®MMX®) for active, mild-to-moderate ulcerative colitis

scientific article published on 17 July 2019

A proposed tailored investigational algorithm for women treated for gynaecological cancer with long-term gastrointestinal consequences

scientific article published on 29 January 2020

A review of endoscopic balloon dilatation techniques for treating Crohn's strictures: time to standardise therapy

scientific article published on 13 July 2016

A systematic review: The management and outcomes of ileal pouch strictures.

scientific article published on 16 November 2017

Acceptability, effectiveness and safety of a Renew® anal insert in patients who have undergone restorative proctocolectomy with ileal pouch-anal anastomosis

scientific article published on 08 October 2018

Adaptations to the British Society of Gastroenterology guidelines on the management of acute severe UC in the context of the COVID-19 pandemic: a RAND appropriateness panel

scientific article published on 08 June 2020

Age-related alterations in blood and colonic dendritic cell properties.

scientific article published on March 2016

Altered human gut dendritic cell properties in ulcerative colitis are reversed by Lactobacillus plantarum extracellular encrypted peptide STp.

scientific article published on 18 December 2013

Anti-TNF Therapy in Crohn's Disease

scientific article published on 31 July 2018

Anti-TNF drug and antidrug antibody level monitoring in IBD: a practical guide

scientific article published on 21 January 2015

Association analyses identify 38 susceptibility loci for inflammatory bowel disease and highlight shared genetic risk across populations

scientific article published on 20 July 2015

Association of Genetic Variants in NUDT15 With Thiopurine-Induced Myelosuppression in Patients With Inflammatory Bowel Disease

scientific article published on 01 February 2019

Azathioprine dose escalation in inflammatory bowel disease

scientific article published on 01 July 2004

Bacteroides thetaiotaomicron-derived outer membrane vesicles promote regulatory dendritic cell responses in health but not in inflammatory bowel disease

scientific article published on 08 June 2020

Biofeedback in patients with ileoanal pouch dysfunction: a specialist centre experience.

scientific article published on 26 March 2018

Biological therapy for the treatment of prepouch ileitis: a retrospective observational study from three centers

scientific article published on 11 December 2018

British Society of Gastroenterology guidance for management of inflammatory bowel disease during the COVID-19 pandemic

scientific article published on 17 April 2020

Burden of disease and adaptation to life in patients with Crohn's perianal fistula: a qualitative exploration

scientific article published on 20 November 2020

Challenges in screening for latent tuberculosis in inflammatory bowel disease prior to biologic treatment: a UK cohort study

scientific article published on 04 April 2018

Characteristics of Intestinal Dendritic Cells in Inflammatory Bowel Diseases

scientific article published on 01 July 2005

Chemokine (C-C Motif) Receptor 2 Mediates Dendritic Cell Recruitment to the Human Colon but Is Not Responsible for Differences Observed in Dendritic Cell Subsets, Phenotype, and Function Between the Proximal and Distal Colon

scientific article

Clinical Features and HLA Association of 5-Aminosalicylate (5-ASA)-induced Nephrotoxicity in Inflammatory Bowel Disease

scientific article published on 29 November 2015

Clinical trials (and tribulations): the immediate effects of COVID-19 on IBD clinical research activity in the United Kingdom

scientific article published on 29 June 2020

Clinical trials in luminal Crohn's disease: a historical perspective

scientific article published on 17 May 2014

Clinical trials in ulcerative colitis: a historical perspective

scientific article published on 25 April 2015

Clinician Administered and Self-Report Survey Both Effective for Identifying Fecal Incontinence in Patients with Inflammatory Bowel Disease

scientific article published on 20 June 2020

Clonal evolution of colorectal cancer in IBD.

scientific article

Commentary: short-term efficacy of tacrolimus in steroid-refractory ulcerative colitis

scientific article published in February 2013

Compartment-specific immunity in the human gut: properties and functions of dendritic cells in the colon versus the ileum

scientific article

Consensus report: clinical recommendations for the prevention and management of the nocebo effect in biosimilar-treated IBD patients

scientific article published on 01 April 2019

Construction and validation of a web-based epidemiological database for inflammatory bowel diseases in Europe

scientific article published on 02 April 2011

Cost-effectiveness of laparoscopic ileocaecal resection versus infliximab treatment of terminal ileitis in Crohn's disease: the LIR!C Trial

scientific article published on 01 February 2019

Cumulative burden of inflammation predicts colorectal neoplasia risk in ulcerative colitis: a large single-centre study

scientific article published on 17 November 2017

Current Practices in Ileal Pouch Surveillance for Patients With Ulcerative Colitis: A Multinational, Retrospective Cohort Study.

scientific article published in May 2019

Deficient Resident Memory T-Cell and Cd8 T-Cell Response to Commensals in Inflammatory Bowel Disease

scientific article published on 26 October 2019

Defining the optimal design of the inflammatory bowel disease multidisciplinary team: results from a multicentre qualitative expert-based study.

scientific article published on 26 March 2015

Determining Predictors for Intra-abdominal Septic Complications Following Ileocolonic Resection for Crohn's Disease-Considerations in Pre-operative and Peri-operative Optimisation Techniques to Improve Outcome.

scientific article published on 21 March 2015

Developing a core outcome set for fistulising perianal Crohn's disease.

scientific article published on 3 February 2018

Development and initial psychometric validation of a patient-reported outcome measure for Crohn's perianal fistula: the Crohn's Anal Fistula Quality of Life (CAF-QoL) scale

scientific article published on 03 December 2020

Diagnostic accuracy of magnetic resonance enterography and small bowel ultrasound for the extent and activity of newly diagnosed and relapsed Crohn's disease (METRIC): a multicentre trial

scientific article published on 18 June 2018

Dietary intake of inulin-type fructans in active and inactive Crohn's disease and healthy controls: a case-control study.

scientific article published on 27 July 2015

Differences in amino acid and lipid metabolism distinguish Crohn's from idiopathic/cryptoglandular perianal fistulas by tissue metabonomic profiling and may offer clues to underlying pathogenesis

scientific article published on 18 December 2020

Differences in inflammatory bowel disease phenotype between South Asians and Northern Europeans living in North West London, UK.

scientific article

Does the Internet promote the unregulated use of fecal microbiota transplantation: a potential public health issue?

scientific article

Doubling the infliximab dose versus halving the infusion intervals in Crohn's disease patients with loss of response.

scientific article published on 31 January 2012

Dynamics of the mucosa-associated flora in ulcerative colitis patients during remission and clinical relapse

scientific article

Dysregulated circulating dendritic cell function in ulcerative colitis is partially restored by probiotic strain Lactobacillus casei Shirota

scientific article published on 18 July 2013

Editorial: a pipe dream fulfilled? A therapeutic option for fatigue in IBD

scientific article published on 01 January 2021

Editorial: anti-TNF therapy and myopenia in Crohn's disease-another step towards personalised medicine. Authors' reply.

scientific article published in January 2018

Editorial: how safe is it to administer the BCG vaccination to babies exposed to anti-TNFα medications antenatally?

scientific article published on 01 December 2019

Effective dilation of small-bowel strictures by double-balloon enteroscopy in patients with symptomatic Crohn's disease (with video).

scientific article published on 28 July 2009

Effectiveness and safety of vedolizumab in inflammatory bowel disease patients aged 60 and over: an observational multicenter UK experience

scientific article published on 07 January 2020

Effectiveness of budesonide MMX (Cortiment) for the treatment of mild-to-moderate active ulcerative colitis: study protocol for a prospective multicentre observational cohort study

scientific article published on 17 May 2016

Endoscopic Dilatation of Crohn's Anastomotic Strictures is Effective in the Long Term, and Escalation of Medical Therapy Improves Outcomes in the Biologic Era.

scientific article

Establishing the aims, format and function for multidisciplinary team-driven care within an inflammatory bowel disease service: a multicentre qualitative specialist-based consensus study

scientific article published on 10 August 2017

Etiology of perianal Crohn's disease: role of genetic, microbiological, and immunological factors

scientific article published on October 2009

Etiology of pouchitis*

scientific article published on October 21, 2011

European consensus conference on faecal microbiota transplantation in clinical practice.

scientific article published on 13 January 2017

Evolutionary history of human colitis-associated colorectal cancer

article

Exploring the genetic architecture of inflammatory bowel disease by whole-genome sequencing identifies association at ADCY7.

scientific article published on 9 January 2017

Factors associated with delayed bleeding after resection of large nonpedunculated colorectal polyps

scientific article published on 06 April 2018

Faecal incontinence intervention study (FINS): self-management booklet information with or without nurse support to improve continence in people with inflammatory bowel disease: study protocol for a randomized controlled trial

scientific article

Faecal microbiota transplantation as a treatment for inflammatory bowel disease: a national survey of adult and paediatric gastroenterologists in the UK

scientific article published on 29 April 2018

Fecal microbial transplantation: an update

scientific article published on 01 September 2018

Forty-Year Analysis of Colonoscopic Surveillance Program for Neoplasia in Ulcerative Colitis: An Updated Overview.

scientific article published on 31 March 2015

Gaps in knowledge and future directions for the use of faecal microbiota transplant in the treatment of inflammatory bowel disease

scientific article published on 25 November 2019

Genome-wide association study implicates immune activation of multiple integrin genes in inflammatory bowel disease

article

Genome-wide association study implicates immune activation of multiple integrin genes in inflammatory bowel disease.

scientific article published on 9 January 2017

Granulocyte/monocyte adsorptive apheresis for the treatment of therapy-refractory chronic active ulcerative colitis

scientific article published on 7 March 2018

HPV-related Cancers in Inflammatory Bowel Disease: Association Not Yet Causation

scientific article published on 29 June 2020

Homing marker expression on circulating dendritic cells correlates with different phenotypes of Crohn's disease

scientific article published on 24 October 2012

Homing of immune cells: role in homeostasis and intestinal inflammation.

scientific article

Host-microbe interactions have shaped the genetic architecture of inflammatory bowel disease

scientific article

How Quickly Do Inflammatory Bowel Disease Medications Really Work?

scientific article published on 19 September 2018

How are we managing fistulating perianal Crohn's disease? Results of a national survey of consultant gastroenterologists

scientific article published on 23 September 2017

Human gut dendritic cells drive aberrant gut-specific t-cell responses in ulcerative colitis, characterized by increased IL-4 production and loss of IL-22 and IFNγ.

scientific article published on December 2014

Human gut-specific homeostatic dendritic cells are generated from blood precursors by the gut microenvironment

scientific article published on 10 October 2011

IBD: reproductive health, pregnancy and lactation

scientific article published on 15 April 2014

IL-6 promotes immune responses in human ulcerative colitis and induces a skin-homing phenotype in the dendritic cells and Tcells they stimulate

scientific article published on 01 May 2012

Immunosuppressive effects via human intestinal dendritic cells of probiotic bacteria and steroids in the treatment of acute ulcerative colitis

scientific article published in August 2010

Improving the Understanding of Perianal Crohn Fistula Through 3D Modeling

scientific article published on 11 December 2017

In Patients With Perianal Crohn's Fistulas, What Are the Outcomes When 'Radiological Healing' Is Achieved? Does Radiological Healing of Perianal Crohn's Fistulas Herald the Time Point for Stopping a Biologic?

scientific article published on 10 July 2017

Incidence and Long-Term Implications of Prepouch Ileitis: An Observational Study

scientific article published on 23 January 2018

Infliximab induces a dysregulated tissue-homing profile on human T-lymphocytes in-vitro: a novel mechanism for paradoxical inflammation?

scientific article published on 24 January 2013

Innate immune factors in the development and maintenance of pouchitis

scientific article

Innovation in the imaging perianal fistula: a step towards personalised medicine.

scientific article

International Organization for the Study of Inflammatory Bowel Disease: Global Strategies for Telemedicine and Inflammatory Bowel Diseases

scientific article published on 01 October 2020

International consensus conference on stool banking for faecal microbiota transplantation in clinical practice

scientific article published on 28 September 2019

Intestinal dendritic cells: their role in intestinal inflammation, manipulation by the gut microbiota and differences between mice and men.

scientific article published on 23 January 2013

Issues surrounding postoperative therapy in Crohn's disease to prevent recurrence

scientific article published on 20 February 2014

Laparoscopic ileocaecal resection versus infliximab for terminal ileitis in Crohn's disease: a randomised controlled, open-label, multicentre trial

scientific article

Long term outcomes of initial infliximab therapy for inflammatory pouch pathology: a multi-Centre retrospective study

scientific article published on 29 September 2018

Long-term MRI-guided combined anti-TNF-α and thiopurine therapy for Crohn's perianal fistulas

scientific article published on 04 January 2012

Long-term follow-up of the use of maintenance antibiotic therapy for chronic antibiotic-dependent pouchitis

scientific article published on 31 January 2018

Lost therapeutic potential of monocyte-derived dendritic cells through lost tissue homing: stable restoration of gut specificity with retinoic acid

scientific article published on October 2013

Low-grade dysplasia in ulcerative colitis: risk factors for developing high-grade dysplasia or colorectal cancer

scientific article

METRIC (MREnterography or ulTRasound in Crohn's disease): a study protocol for a multicentre, non-randomised, single-arm, prospective comparison study of magnetic resonance enterography and small bowel ultrasound compared to a reference standard in t

article

Magnetic resonance enterography compared with ultrasonography in newly diagnosed and relapsing Crohn's disease patients: the METRIC diagnostic accuracy study

scientific article published on 01 August 2019

Management of inflammatory bowel disease-associated colonic dysplasia: factors predictive of patient choice and satisfaction

scientific article published on 27 November 2020

Mechanisms of action of anti-tumor necrosis factor α agents in Crohn's disease

scientific article published on June 2013

Mechanisms of action of probiotics: recent advances

scientific article

Medical-surgical Combined Approach in Perianal Fistulizing Crohn's Disease (CD): Doing it Together

scientific article published on 01 January 2019

Meeting update: faecal microbiota transplantation--bench, bedside, courtroom?

scientific article published on 4 November 2016

Metabonomics and the gut microbiome associated with primary response to anti-TNF therapy in Crohn's disease

scientific article published on 02 March 2020

Microbial-gut interactions in health and disease. Interactions between dendritic cells and bacteria in the regulation of intestinal immunity

scientific article published on April 2004

Modulation of human dendritic cell phenotype and function by probiotic bacteria

scientific article published in November 2004

Multicentre Cohort Study to Evaluate the Need for Re-Intervention following Multimodal Treatment in Croh<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mover><mml:mtext>n</mml:mtext><mml:mo>`</mml:mo>

scientific article published on 22 April 2017

Multidisciplinary management of the nocebo effect in biosimilar-treated IBD patients: Results of a workshop from the NOCE-BIO consensus group

scientific article published on 04 December 2019

Multimodal treatment of perianal fistulas in Crohn's disease: seton versus anti-TNF versus advancement plasty (PISA): study protocol for a randomized controlled trial

scientific article

Multiomic features associated with mucosal healing and inflammation in paediatric Crohn's disease

scientific article published on 14 September 2020

Oral tacrolimus as maintenance therapy for refractory ulcerative colitis—an analysis of outcomes in two London tertiary centres ⬇️

scientific article published on April 25, 2013

Patient preference in choosing biological therapy in Crohnʼs disease ⬇️

scientific article published on 01 May 2011

Perianal fistula and the ileoanal pouch - different aetiologies require distinct evaluation

scientific article published on 17 April 2020

Persistent Fistula After Anorectal Abscess Drainage: Local Experience of 11 Years

scientific article published on 01 March 2019

Pilot study of immunological factors in non-inflammatory bowel disease enterocutaneous fistulas

scientific article

Precision Medicine with FMT for Ulcerative Colitis: Are We There Yet?

scientific article published on 20 October 2020

Predictors for developing intestinal failure in patients with Crohn's disease

scientific article

Predictors of anti-TNF treatment failure in anti-TNF-naive patients with active luminal Crohn's disease: a prospective, multicentre, cohort study

scientific article published on 27 February 2019

Prospective evaluation of intestinal homing memory T cells in ulcerative colitis

scientific article published in September 2004

Prospective evaluation of the relationship between stress and relapse in ulcerative colitis

scientific article published on 01 September 2008

Prospective study of immunological factors in non-inflammatory bowel disease enterocutaneous fistulas ⬇️

scientific article

Quality of care standards in inflammatory bowel diseases: a European Crohn's and Colitis Organisation (ECCO) position paper

scientific article published on 07 February 2020

Quantitative and functional characteristics of intestinal-homing memory T cells: analysis of Crohn's disease patients and healthy controls

scientific article published in January 2004

Randomised, double-blind, placebo-controlled trial of fructo-oligosaccharides in active Crohn's disease.

scientific article published on 24 January 2011

Randomized Trial of Ciprofloxacin Doxycycline and Hydroxychloroquine Versus Budesonide in Active Crohn's Disease

scientific article published on 17 July 2020

Relationship between human intestinal dendritic cells, gut microbiota, and disease activity in Crohn's disease

scientific article published on 22 December 2010

Reliability among central readers in the evaluation of endoscopic disease activity in pouchitis

Republished curriculum based clinical review: IBD: reproductive health, pregnancy and lactation

scientific article published on April 2015

Results of the Fifth Scientific Workshop of the ECCO [II]: Clinical Aspects of Perianal Fistulising Crohn's Disease-the Unmet Needs.

scientific article published on 28 January 2016

Review article: faecal transplantation therapy for gastrointestinal disease

scientific article published on 20 June 2011

Review article: medical, surgical and radiological management of perianal Crohn’s fistulas ⬇️

scientific article published on October 29, 2010

Review article: pathogenesis of Crohn's perianal fistula-understanding factors impacting on success and failure of treatment strategies

scientific article published on 19 June 2018

Review article: the optimal medical management of acute severe ulcerative colitis.

scientific article published on September 2010

Review of local injection of anti-TNF for perianal fistulising Crohn's disease

scientific article published on 12 September 2017

STOP-Colitis pilot trial protocol: a prospective, open-label, randomised pilot study to assess two possible routes of faecal microbiota transplant delivery in patients with ulcerative colitis

scientific article published on 11 November 2019

Safety and Efficacy of Granulocyte/Monocyte Apheresis in Steroid-Dependent Active Ulcerative Colitis with Insufficient Response or Intolerance to Immunosuppressants and/or Biologics [the ART Trial]: 12-week Interim Results

scientific article published on 27 January 2016

Screening faecal microbiota transplant donors for SARS-CoV-2 by molecular testing of stool is the safest way forward

scientific article published on 30 March 2020

Skin- and gut-homing molecules on human circulating γδ T cells and their dysregulation in inflammatory bowel disease.

scientific article published in November 2012

Smokers with active Crohn's disease have a clinically relevant dysbiosis of the gastrointestinal microbiota.

scientific article

Standardising assessment and documentation of pouchoscopy

scientific article published on 13 March 2018

Surgical management of rectovaginal fistula in a tertiary referral centre: many techniques are needed ⬇️

scientific article published on July 1, 2013

Survey on the use of adalimumab as maintenance therapy in Crohn's disease in England and Ireland

scientific article published on March 2010

Symptom Amelioration in Crohn's Perianal Fistulas Using Video-Assisted Anal Fistula Treatment (VAAFT)

scientific article published on 01 August 2018

Systematic Review: The Impact of Cancer Treatment on the Gut and Vaginal Microbiome in Women With a Gynecological Malignancy

scientific article published on 6 June 2017

Systematic review with meta-analysis: IBD-associated colonic dysplasia prognosis in the videoendoscopic era (1990 to present)

scientific article published on 20 May 2020

Systematic review with meta-analysis: faecal diversion for management of perianal Crohn's disease.

scientific article published on 11 August 2015

Systematic review with meta-analysis: the management of chronic refractory pouchitis with an evidence-based treatment algorithm.

scientific article published on 23 December 2016

Systematic review: ileoanal pouch microbiota in health and disease.

scientific article

Systematic review: the combined surgical and medical treatment of fistulising perianal Crohn's disease.

scientific article published on 13 August 2014

T-cell proliferation and forkhead box P3 expression in human T cells are dependent on T-cell density: physics of a confined space?

scientific article published on 3 January 2012

The Effect of Vitamin D on Intestinal Inflammation and Faecal Microbiota in Patients with Ulcerative Colitis

scientific article published on 01 July 2018

The Incidence and Prevalence of Human Papilloma Virus-associated Cancers in IBD

scientific article published on 21 February 2020

The application of omics techniques to understand the role of the gut microbiota in inflammatory bowel disease

scientific article published on 24 January 2019

The dendritic cell: its role in intestinal inflammation and relationship with gut bacteria

scientific article

The development of a minimum dataset for MRI reporting of anorectal fistula: a multi-disciplinary, expert consensus process

scientific article published in 2022

The gut microbiota and host health: a new clinical frontier

scientific article

The gut virome: the 'missing link' between gut bacteria and host immunity?

scientific article published on 25 March 2019

The microbiome in inflammatory bowel disease and its modulation as a therapeutic manoeuvre

scientific article

The prevalence of chronic peri-pouch sepsis in patients treated for antibiotic-dependent or refractory primary idiopathic pouchitis

scientific article published on 30 September 2016

The role of multimodal treatment in Crohn's disease patients with perianal fistula: a multicentre retrospective cohort study

scientific article published on 18 September 2018

The role of the gut flora in health and disease, and its modification as therapy

scientific article

The use of 5-aminosalicylates in Crohn's disease: a retrospective study using the UK Clinical Practice Research Datalink

scientific article published on 22 June 2020

The use of faecal microbiota transplant as treatment for recurrent or refractory Clostridium difficile infection and other potential indications: joint British Society of Gastroenterology (BSG) and Healthcare Infection Society (HIS) guidelines

scientific article published on 28 August 2018

The use of faecal microbiota transplant as treatment for recurrent or refractory Clostridium difficile infection and other potential indications: joint British Society of Gastroenterology (BSG) and Healthcare Infection Society (HIS) guidelines

scientific article published on 01 September 2018

Third European Evidence-based Consensus on Diagnosis and Management of Ulcerative Colitis. Part 1: Definitions, Diagnosis, Extra-intestinal Manifestations, Pregnancy, Cancer Surveillance, Surgery, and Ileo-anal Pouch Disorders

scientific article published on 2 February 2017

Tight junctions in inflammatory bowel diseases and inflammatory bowel disease associated colorectal cancer

scientific article

Tingling hands and dilated gut

scientific article published on 05 July 2010

Topical tacrolimus in the treatment of perianal Crohn's disease: exploratory randomized controlled trial

scientific article published on 01 March 2007

Twenty years of biological therapy in an patient with IBD.

scientific article

Ulcerative Colitis Narrative Global Survey Findings: Communication Gaps and Agreements Between Patients and Physicians

scientific article published on 15 October 2020

Unmet Medical Needs in Ulcerative Colitis: An Expert Group Consensus

scientific article published on 06 February 2019

Use of probiotics in the treatment of inflammatory bowel disease

scientific article

Variable alterations of the microbiota, without metabolic or immunological change, following faecal microbiota transplantation in patients with chronic pouchitis

scientific article

Vitamin D and gastrointestinal diseases: inflammatory bowel disease and colorectal cancer.

scientific article

Vulval Crohn's disease: a tertiary center experience of 23 patients

scientific article published on 28 April 2011

What Are the Top 10 Research Questions in the Treatment of Inflammatory Bowel Disease? A Priority Setting Partnership with the James Lind Alliance.

scientific article published on 09 August 2016

What are the dietary treatment research priorities for inflammatory bowel disease? A short report based on a priority setting partnership with the James Lind Alliance.

scientific article published on 10 August 2017

What changes in inflammatory bowel disease management can be implemented today?

scientific article published on February 2012

What role do bacteria play in persisting fistula formation in idiopathic and Crohn's anal fistula?

scientific article

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