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List of works by Christopher Ma

A Rare Cause of Chronic Abdominal Pain

scientific article published on 3 May 2016

Adalimumab dose escalation is effective for managing secondary loss of response in Crohn's disease

article

Adverse Events and Nocebo Effects in Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

scientific article published on 01 September 2019

An expert consensus to standardise the assessment of histological disease activity in Crohn's disease clinical trials

scientific article published on 07 January 2021

Anti-TNF Therapy Within 2 Years of Crohn's Disease Diagnosis Improves Patient Outcomes: A Retrospective Cohort Study

scientific article published in April 2016

Assessing National Trends and Disparities in Ambulatory, Emergency Department, and Inpatient Visits for Inflammatory Bowel Disease in the United States (2005-2016)

scientific article published on 24 January 2020

Clinical utility of ustekinumab in Crohn's disease.

scientific article published on 8 February 2018

Clinical, endoscopic and radiographic outcomes with ustekinumab in medically-refractory Crohn's disease: real world experience from a multicentre cohort

scientific article

Colonic Dieulafoy's Lesion: A Rare Cause of Lower Gastrointestinal Hemorrhage and Review of Endoscopic Management

scientific article

Concomitant Use of Aminosalicylates Is Not Associated With Improved Outcomes in Patients With Ulcerative Colitis Escalated to Vedolizumab

scientific article published on 07 December 2018

Corticosteroid-Free Remission vs Overall Remission in Clinical Trials of Moderate-Severe Ulcerative Colitis and Crohn's Disease

scientific article published on 01 March 2020

Crohn's disease outpatients treated with adalimumab have an earlier secondary loss of response and requirement for dose escalation compared to infliximab: A real life cohort study

article

Development of the symptoms and impacts questionnaire for Crohn's disease and ulcerative colitis

scientific article published on 21 April 2020

Discordance Between Patient-Reported Outcomes and Mucosal Inflammation in Patients With Mild to Moderate Ulcerative Colitis

scientific article published on 20 September 2019

Early Initiation of Tumor Necrosis Factor Antagonist-Based Therapy for Patients With Crohn's Disease Reduces Costs Compared With Late Initiation

scientific article published on 26 July 2018

Editorial: is age just a number when it comes to treatment of inflammatory bowel disease?

scientific article published on 01 November 2020

Heterogeneity in Clinical, Endoscopic, and Histologic Outcome Measures and Placebo Response Rates in Clinical Trials of Eosinophilic Esophagitis: A Systematic Review

scientific article published on 14 June 2018

Heterogeneity in Definitions of Efficacy and Safety Endpoints for Clinical Trials of Crohn's Disease: A Systematic Review for Development of a Core Outcome Set.

scientific article published on 26 March 2018

IL12/23 or selective IL23 inhibition for the management of moderate-to-severe Crohn's disease?

scientific article published on 19 February 2019

Identifying Outcomes in Clinical Trials of Fistulizing Crohn's Disease for the Development of a Core Outcome Set

article

Identifying Outcomes in Clinical Trials of Pouchitis for the Development of a Core Outcome Set

scientific article published on 27 September 2018

Improving Clinical Trial Efficiency in Gastroenterology

scientific article published on 19 June 2019

Inflammatory bowel disease patients are frequently nonadherent to scheduled induction and maintenance infliximab therapy: A Canadian cohort study.

scientific article

Inflammatory bowel disease patients who leave hospital against medical advice: Predictors and temporal trends

scientific article published on 01 June 2009

Innovations in Oral Therapies for Inflammatory Bowel Disease

scientific article published on 01 August 2019

Investigational drugs in phase I and phase II clinical trials targeting interleukin 23 (IL23) for the treatment of Crohn's disease

scientific article published on 10 August 2018

Long-term Maintenance of Clinical, Endoscopic, and Radiographic Response to Ustekinumab in Moderate-to-Severe Crohn's Disease: Real-world Experience from a Multicenter Cohort Study.

scientific article published on 21 March 2017

Noninvasive Fecal Immunochemical Testing and Fecal Calprotectin Predict Mucosal Healing in Inflammatory Bowel Disease: A Prospective Cohort Study

scientific article published on 01 September 2017

Outpatient Ulcerative Colitis Primary Anti-TNF Responders Receiving Adalimumab or Infliximab Maintenance Therapy Have Similar Rates of Secondary Loss of Response

article

Patient preferences for maintenance therapy in Crohn's disease: A discrete-choice experiment

scientific article published on 16 January 2020

Postoperative complications and mortality following colectomy for ulcerative colitis.

scientific article published on 30 July 2011

Preoperative Ustekinumab Treatment Is Not Associated With Increased Postoperative Complications in Crohn's Disease: A Canadian Multi-Centre Observational Cohort Study

scientific article published on 10 May 2018

Prevalence of endoscopic improvement and remission according to patient-reported outcomes in ulcerative colitis

scientific article published on 22 November 2019

Real-Life Treatment Paradigms Show Adalimumab Is Cost-Effective for the Management of Ulcerative Colitis.

scientific article published on 03 October 2016

Recurrent Fevers After Infliximab Therapy for Ulcerative Colitis

scientific article published on 25 November 2015

Reduction in surgical stoma rates in Crohn's disease: a population-based time trend analysis

scientific article published on 05 July 2019

Reliability of Endoscopic Evaluation of Postoperative Recurrent Crohn's Disease

scientific article published on 29 August 2019

Safety of Combination Biologic and Antirejection Therapy Post-Liver Transplantation in Patients With Inflammatory Bowel Disease

scientific article published on 28 October 2019

Similar Clinical and Surgical Outcomes Achieved with Early Compared to Late Anti-TNF Induction in Mild-to-Moderate Ulcerative Colitis: A Retrospective Cohort Study

scientific article published on 11 July 2016

Surgical Rates for Crohn's Disease are Decreasing: A Population-Based Time Trend Analysis and Validation Study.

scientific article published on 31 October 2017

Systematic review with meta-analysis: efficacy and safety of oral Janus kinase inhibitors for inflammatory bowel disease

scientific article published on 23 May 2019

Systematic review with meta-analysis: endoscopic and histologic placebo rates in induction and maintenance trials of ulcerative colitis

scientific article published on 25 April 2018

Systematic review with meta-analysis: high prevalence and cost of continued aminosalicylate use in patients with ulcerative colitis escalated to immunosuppressive and biological therapies

scientific article published on 19 December 2018

Systematic review with meta-analysis: prevalence, risk factors and costs of aminosalicylate use in Crohn's disease

scientific article published on 30 May 2018

Systematic review: medical therapy for fibrostenosing Crohn's disease

scientific article published on 13 May 2020

Systematic review: the short-term and long-term efficacy of adalimumab following discontinuation of infliximab.

scientific article published on 22 July 2009

Targeting anti-fibrotic pathways in Crohn's disease - The final frontier?

scientific article published on 16 February 2019

Teduglutide in Patients With Active Crohn's Disease and Short Bowel Syndrome

scientific article published on 01 August 2019

The Argument Against a Biosimilar Switch Policy for Infliximab in Patients with Inflammatory Bowel Disease Living in Alberta

scientific article published on 24 January 2020

Vedolizumab Induced Clinical, Endoscopic, and Histological Improvement in Common Variable Immunodeficiency Disease-associated Intestinal Enteropathy

scientific article published on 01 March 2020

What is the role of C-reactive protein and fecal calprotectin in evaluating Crohn's disease activity?

scientific article published on 22 February 2019

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