@article{4dcaa42037d046f89a3917c92a4b5b3a,
title = "Risk of venous thromboembolism from use of oral contraceptives containing different progestogens and oestrogen doses: Danish cohort study, 2001-9",
abstract = "To assess the risk of venous thromboembolism from use of combined oral contraceptives according to progestogen type and oestrogen dose.",
keywords = "Adolescent, Adult, Aldosterone Antagonists, Androstenes, Anticoagulants, Cohort Studies, Confounding Factors (Epidemiology), Contraceptives, Oral, Denmark, Desogestrel, Dose-Response Relationship, Drug, Epidemiologic Methods, Female, Humans, Intrauterine Devices, Medicated, Levonorgestrel, Middle Aged, Norpregnenes, Pregnancy, Time Factors, Venous Thromboembolism, Young Adult",
author = "{\O}jvind Lidegaard and Nielsen, {Lars Hougaard} and Skovlund, {Charlotte Wessel} and Skjeldestad, {Finn Egil} and Ellen L{\o}kkegaard",
year = "2011",
language = "English",
volume = "343",
pages = "d6423",
journal = "B M J",
issn = "0959-8146",
publisher = "B M J Group",
}