Frans M. Helmerhorst

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

Astrid van Hylckama Vlieg, Frans M. Helmerhorst, Jan P. Vandenbroucke et al. · BMJ · 2009 · 662 citations · Full text

Medicine, Gynecology, Obstetrics +17

The influence of ovarian steroids on hypothalamic-pituitary-adrenal regulation in the female rat

Margaret P. Carey, C H Deterd, Jos J. de Koning et al. · Journal of Endocrinology · 1995 · 388 citations

Medicine, Endocrinology, Neuroendocrinology +16

Risk of Arterial Thrombosis in Relation to Oral Contraceptives (RATIO) Study

Jeanet M. Kemmeren, Bea C. Tanis, Maurice A. A. J. van den Bosch et al. · Stroke · 2002 · 225 citations · Full text

Medicine, Obstetrics, Preventive Medicine +14

Oral Contraceptives and the Risk of Myocardial Infarction

Bea C. Tanis, Maurice A. A. J. van den Bosch, Jeanet M. Kemmeren et al. · Obstetrical & Gynecological Survey · 2002 · 225 citations · Full text

Medicine, Cardiology, Obstetrics +14

Risk of borderline and invasive ovarian tumours after ovarian stimulation for in vitro fertilization in a large Dutch cohort

Flora E. van Leeuwen, Helen Klip, Thea M. Mooij et al. · Human Reproduction · 2011 · 198 citations · Full text

Medicine, Gynecology, Oncology +17