title: Oral contraceptives are a risk factor for cerebral vein thrombosis.
authors.forename: I
authors.initials: I
authors.lastname: Martinelli
authors.forename: F R
authors.initials: FR
authors.lastname: Rosendaal
authors.forename: J P
authors.initials: JP
authors.lastname: Vandenbroucke
authors.forename: P M
authors.initials: PM
authors.lastname: Mannucci
mesh_terms: D002550:Cerebral Veins / Q000473:pathology*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D002542:Intracranial Embolism and Thrombosis / Q000209:etiology* / Q000473:pathology
chemical_list: D003276:Contraceptives, Oral