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List of works by Frans Helmerhorst

21+7 day versus 24+4 day monophasic regimens of combined oral contraceptives for contraception

scientific article

A case of thrombosis at high altitude

scientific article published on 01 November 2005

An analysis of systematic reviews indicated low incorpororation of results from clinical trial quality assessment

scientific article

Association between sex hormone-binding globulin levels and activated protein C resistance in explaining the risk of thrombosis in users of oral contraceptives containing different progestogens

scientific article

Biphasic versus monophasic oral contraceptives for contraception

scientific article

Biphasic versus monophasic oral contraceptives for contraception.

scientific article

Biphasic versus monophasic oral contraceptives for contraception: a Cochrane review

scientific article

Biphasic versus triphasic oral contraceptives for contraception

scientific article

Biphasic versus triphasic oral contraceptives for contraception

scientific article published on 01 May 2002

Biphasic versus triphasic oral contraceptives for contraception.

scientific article

C825T polymorphism in the human G protein beta 3 subunit gene and preeclampsia; a case control study

scientific article published in January 2004

Cognitive Development of Singletons Born After Intracytoplasmic Sperm Injection Compared With In Vitro Fertilization and Natural Conception

article

Cognitive development of singletons born after intracytoplasmic sperm injection compared with in vitro fertilization and natural conception

article

Combination contraceptives: effects on weight

scientific article (published 2014-01-29)

Combination contraceptives: effects on weight

scientific article (published 2011-09-07)

Combination contraceptives: effects on weight

scientific article

Combination contraceptives: effects on weight

scientific article (publication date: 25 January 2006)

Combination contraceptives: effects on weight

scientific article (publication date: 22 April 2003)

Combination estrogen-progestin contraceptives and body weight: systematic review of randomized controlled trials

scientific article published on February 2004

Combined oral contraceptives: the risk of myocardial infarction and ischemic stroke

scientific article

Combined oral contraceptives: the risk of myocardial infarction and ischemic stroke

scientific article (publication date: 30 March 2014)

Combined oral contraceptives: venous thrombosis

scientific article

Combined oral contraceptives: venous thrombosis

scientific article (publication date: 11 November 2013)

Competing interests and controversy about third generation oral contraceptives. BMJ readers should know whose words they read

scientific article

Copper containing, framed intra-uterine devices for contraception

scientific article

Copper-containing, framed intrauterine devices for contraception: a systematic review of randomized controlled trials

scientific article published on 18 March 2008

Different combined oral contraceptives and the risk of venous thrombosis: systematic review and network meta-analysis

scientific article

Different effects of oral contraceptives containing different progestogens on protein S and tissue factor pathway inhibitor

scientific article published on 7 December 2007

Difficulties in recruitment for a randomized controlled trial involving hysterosalpingography

scientific article

Dutch women with a low birth weight have an increased risk of myocardial infarction later in life: a case control study

scientific article

Effect of ethinylestradiol dose and progestagen in combined oral contraceptives on plasma sex hormone‐binding globulin levels in premenopausal women ⬇️

scientific article published on 01 January 2013

Effect of oral contraceptives on thrombin generation measured via calibrated automated thrombography

scientific article published on 01 December 2007

Effect of the postcoital test on the sexual relationship of infertile couples: a randomized controlled trial

scientific article published on 01 April 1996

Effectiveness and acceptability of progestogens in combined oral contraceptives - a systematic review

scientific article

Effects of the contraceptive patch, the vaginal ring and an oral contraceptive on APC resistance and SHBG: a cross-over study

scientific article published on 30 September 2008

Effects of the contraceptive vaginal ring, the contraceptive transdermal patch and combined oral contraceptives on markers of hemostasis

scientific article published on 01 January 2010

Enhancement by factor V Leiden mutation of risk of deep-vein thrombosis associated with oral contraceptives containing a third-generation progestagen

scientific article published on December 1995

Epidemiology of oral contraceptives and cardiovascular disease

scientific article published on 01 November 1998

Evaluation of the postcoital test for assessment of 'cervical factor' infertility

scientific article published on 01 February 1996

Factor V Leiden: should we screen oral contraceptive users and pregnant women?

scientific article published on November 1996

Female risk factors for subarachnoid hemorrhage: a systematic review.

scientific article published on 05 September 2012

Genetic polymorphisms modify the response of factor VII to oral contraceptive use: an example of gene-environment interaction

scientific article

Genetic variation in the first-pass metabolism of ethinylestradiol, sex hormone binding globulin levels and venous thrombosis risk

scientific article published on 31 May 2017

Hemostatic effects of oral contraceptives in women who developed deep-vein thrombosis while using oral contraceptives

scientific article published on 01 September 1998

Higher risk of venous thrombosis during early use of oral contraceptives in women with inherited clotting defects

scientific article published on 01 January 2000

Hormonal contraceptives for contraception in overweight or obese women

scientific article

Hormonal contraceptives for contraception in overweight or obese women

scientific article (published 2010-07-07)

Hormonal contraceptives for contraception in overweight or obese women

scientific article (publication date: 14 April 2010)

Hormonal contraceptives for contraception in overweight or obese women

scientific article (publication date: 18 August 2016)

Hormonal replacement therapy, prothrombotic mutations and the risk of venous thrombosis

scientific article published on 01 March 2002

Human embryo-conditioned medium stimulates in vitro endometrial angiogenesis

scientific article published in April 2006

Immunohistochemical and ultrastructural localization of prostaglandin H synthase in the preimplantation mouse embryo

scientific article published on 01 July 1996

Increase in daily LH secretion in response to short-term calorie restriction in obese women with PCOS.

scientific article

Injection of embryo culture supernatant prior to blastocyst transfer--cofactor?

scientific article published on 5 March 2008

Intra-uterine insemination versus timed intercourse or expectant management for cervical hostility in subfertile couples ⬇️

scientific article

Intrauterine insemination versus timed intercourse for cervical hostility in subfertile couples

scientific article

Is an EMA review on hormonal contraception and thrombosis needed?

scientific article published on 07 March 2013

Matched follow-up study of 5 8-year-old ICSI singletons: child behaviour, parenting stress and child (health-related) quality of life.

scientific article published on 28 September 2007

Matched follow-up study of 5–8 year old ICSI-singletons: comparison of their neuromotor development to IVF and naturally conceived singletons

article

Mortality from venous thromboembolism and myocardial infarction in young women in the Netherlands

scientific article published in August 1996

Oral contraceptives and the risk of myocardial infarction

scientific article published on December 2001

Oral contraceptives containing drospirenone for premenstrual syndrome

scientific article (published 2012-02-15)

Oral contraceptives containing drospirenone for premenstrual syndrome

scientific article

Oral contraceptives containing drospirenone for premenstrual syndrome

scientific article (publication date: 23 January 2008)

PCOS, coronary heart disease, stroke and the influence of obesity: a systematic review and meta-analysis ⬇️

scientific article published on February 18, 2011

Perinatal outcome, health, growth, and medical care utilization of 5- to 8-year-old intracytoplasmic sperm injection singletons

article

Predicting optimal cervical mucus for infertility diagnosis

scientific article published on 01 May 1997

Preeclampsia and genetic risk factors for thrombosis: a case-control study

scientific article published on 01 October 1999

Procoagulant factors and the risk of myocardial infarction in young women

scientific article

Progestin-only contraceptives: effects on weight

scientific article (published 2013-01-01)

Progestin-only contraceptives: effects on weight

2010 scientific article

Progestin-only contraceptives: effects on weight

scientific article (published 2011-01-01)

Progestin-only contraceptives: effects on weight

scientific article

Progestogen-releasing intrauterine systems versus other forms of reversible contraceptives for contraception

scientific article

Progestogens in combined oral contraceptives for contraception

scientific article

Prostanoid excretion before in vitro fertilization relates to the likelihood of pregnancy

scientific article published on 01 December 1995

Prostanoid excretion in incipient singleton and twin pregnancies

scientific article published on 01 May 1996

Prostanoid levels in in vitro fertilization culture medium are not related to the likelihood of implantation.

scientific article published in December 1994

Quadriphasic versus monophasic oral contraceptives for contraception

scientific article (published 2011-11-09)

Quadriphasic versus monophasic oral contraceptives for contraception

scientific article

Resistance to APC and SHBG levels during use of a four-phasic oral contraceptive containing dienogest and estradiol valerate: a randomized controlled trial

scientific article

Retention of estradiol negative feedback relationship to LH predicts ovulation in response to caloric restriction and weight loss in obese patients with polycystic ovary syndrome

scientific article published on 16 December 2003

Risk of Arterial Thrombosis in Relation to Oral Contraceptives (RATIO) study: oral contraceptives and the risk of ischemic stroke

scientific article

Risk of oral contraceptives and recency of market introduction

scientific article published on 01 March 1997

Risk of venous thrombosis with hormone-replacement therapy

scientific article published on 01 October 1996

Routine postcoital testing is unnecessary

scientific article published on 01 May 2001

Sensitivity to activated protein C during the menstrual cycle in women with and without factor VLeiden

scientific article published on 22 October 2007

Sex difference in risk of recurrent venous thrombosis and the risk profile for a second event

scientific article published on 01 October 2010

Sex hormone-binding globulin as a marker for the thrombotic risk of hormonal contraceptives: reply to a rebuttal

scientific article published on 01 February 2013

Sex hormone-binding globulin levels are not causally related to venous thrombosis risk in women not using hormonal contraceptives

scientific article published on 01 October 2012

Sex hormone-binding globulin: an adequate surrogate marker for venous thromboembolism in women using new hormonal contraceptives

scientific article published on 11 December 2008

Sex hormone‐binding globulin as a marker for the thrombotic risk of hormonal contraceptives ⬇️

scientific article published on June 1, 2012

Steroidal contraceptives and bone fractures in women: evidence from observational studies

scientific article (published 2015-07-21)

Steroidal contraceptives and bone fractures in women: evidence from observational studies

scientific article

Steroidal contraceptives and bone fractures in women: evidence from observational studies

scientific article (publication date: 15 August 2012)

The Cochrane Fertility Regulation Group: synthesizing the best evidence about family planning

scientific article published on 19 June 2006

The RATIO study: oral contraceptives and the risk of peripheral arterial disease in young women

scientific article published on 01 March 2003

The Risk of Deep Venous Thrombosis Associated With Injectable Depot–Medroxyprogesterone Acetate Contraceptives or a Levonorgestrel Intrauterine Device ⬇️

scientific article published on August 26, 2010

The effect of different hormonal contraceptives on plasma levels of free protein S and free TFPI

scientific article published on 14 February 2013

The effect of factor V Leiden, oral contraceptive use, type of oral contraceptives and pregnancy on APC-r levels in women with or without a history of pre-eclampsia

scientific article published on 01 April 2001

The effect of the levonorgestrel-releasing intrauterine system on the resistance to activated protein C (APC).

scientific article published in April 2009

The influence of indomethacin on the hatching of mouse blastocysts

scientific article published on 01 September 1993

The pill and venous thromboembolism: a disarray of several layers of debate ⬇️

scientific article published on 01 May 1998

The risk of venous thrombosis in individuals with a history of superficial vein thrombosis and acquired venous thrombotic risk factors

scientific article published in November 2013

The risk of venous thrombosis in women over 50 years old using oral contraception or postmenopausal hormone therapy

scientific article

The tortuous history of the implementation of early ambulation after delivery.

scientific article published in February 2007

The value of Chlamydia trachomatis-specific IgG antibody testing and hysterosalpingography for predicting tubal pathology and occurrence of pregnancy

scientific article published on 12 February 2007

The venous thrombotic risk of oral contraceptives, effects of oestrogen dose and progestogen type: results of the MEGA case-control study

scientific article published on 13 August 2009

Third-generation oral contraceptives and venous thrombosis

scientific article published on 01 March 1997

Thrombophilias and gynaecology

scientific article

Thromboprophylaxis for recurrent miscarriage in women with or without thrombophilia. HABENOX: a randomised multicentre trial

scientific article published on 23 November 2010

Thyroid function, activated protein C resistance and the risk of venous thrombosis in users of hormonal contraceptives.

scientific article

Triphasic versus monophasic oral contraceptives for contraception

scientific article (publication date: 9 November 2011)

Triphasic versus monophasic oral contraceptives for contraception

scientific article

Types of progestogens in combined oral contraception: effectiveness and side-effects ⬇️

scientific article published on May 11, 2011

Vaginal misoprostol prior to insertion of an intrauterine device: an RCT

scientific article published on 15 December 2010

Venous thromboembolism and oral contraceptives

scientific article published on 01 October 1999

Venous thromboembolism and the pill. The WHO technical report on cardiovascular disease and steroid hormone contraception: state-of-the-art. World Health Organization

scientific article published on 01 November 1998

Which prostanoid metabolites should be determined for the study of reproductive processes? ⬇️

scientific article published on 01 March 1998

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