title: Clinical profile and recurrence rate in women with venous thromboembolism during combined hormonal contraceptive use: a prospective cohort study.
authors.affiliation: Division of Haemostasis and Thrombosis, Department of Haematology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands. e.f.w.van.vlijmen@umcg.nl.
authors.forename: Elizabeth F W
authors.initials: EF
authors.lastname: van Vlijmen
authors.affiliation: Division of Haemostasis and Thrombosis, Department of Haematology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.
authors.forename: Anja B U
authors.initials: AB
authors.lastname: Mäkelburg
authors.affiliation: Division of Haemostasis and Thrombosis, Department of Haematology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.|Department of Obstetrics and Gynaecology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.
authors.forename: H Marieke
authors.initials: HM
authors.lastname: Knol
authors.affiliation: Division of Haemostasis and Thrombosis, Department of Haematology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.
authors.forename: Vladimir I G V
authors.initials: VI
authors.lastname: Tichelaar
authors.affiliation: Division of Haemostasis and Thrombosis, Department of Haematology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.
authors.forename: Hanneke C
authors.initials: HC
authors.lastname: Kluin-Nelemans
authors.affiliation: Department of Clinical Epidemiology, University of Groningen, University Medical Centre, Groningen, The Netherlands.
authors.forename: Nic J G M
authors.initials: NJ
authors.lastname: Veeger
authors.affiliation: Division of Haemostasis and Thrombosis, Department of Haematology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.
authors.forename: Karina
authors.initials: K
authors.lastname: Meijer
mesh_terms: D000293:Adolescent; D000328:Adult; D003277:Contraceptives, Oral, Combined / Q000009:adverse effects*; D003278:Contraceptives, Oral, Hormonal / Q000009:adverse effects*; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000009:adverse effects; D008875:Middle Aged; D011446:Prospective Studies; D012008:Recurrence; D012307:Risk Factors; D054556:Venous Thromboembolism / Q000139:chemically induced*; D055815:Young Adult
chemical_list: D003277:Contraceptives, Oral, Combined; D003278:Contraceptives, Oral, Hormonal; D016912:Levonorgestrel
keywords: oral contraceptives; pregnancy; recurrence; risk factors; venous thrombosis