Jørn Olsen

Relation between semen quality and fertility: a population-based study of 430 first-pregnancy planners

Jens Peter Bonde, Erik Ernst, Tina Kold Jensen et al. · The Lancet · 1998 · 787 citations

Medicine, Obstetrics, Fertility +15

Ischaemic stroke and combined oral contraceptives: results of an international, multicentre, case-control study

Neil R Poulter, Cheng Chang, TMM Farley et al. · The Lancet · 1996 · 337 citations

Medicine, Gynecology, Obstetrics +14

Does weight loss improve semen quality and reproductive hormones? results from a cohort of severely obese men

Linn Berger Håkonsen, Ane Marie Thulstrup, Anette Skærbech Aggerholm et al. · Reproductive Health · 2011 · 329 citations · Full text

Medicine, Endocrinology, Urology +12

Inhibin B as a Serum Marker of Spermatogenesis: Correlation to Differences in Sperm Concentration and Follicle-Stimulating Hormone Levels. A Study of 349 Danish Men¹

Tina Kold Jensen, Anna‐Maria Andersson, Niels Henrik Hjøllund et al. · The Journal of Clinical Endocrinology & Metabolism · 1997 · 300 citations · Full text

Medicine, Endocrinology, Reproductive Endocrinology +16

Is Prenatal Exposure to Tobacco Smoking a Cause of Poor Semen Quality? A Follow-up Study

Cecilia Høst Ramlau‐Hansen, A.M. Thulstrup, Lone Storgaard et al. · American Journal of Epidemiology · 2007 · 142 citations · Full text

Medicine, Maternal Health, Fertility +16