title: Scare over oral contraceptives. Risk is highest during first months of use.
authors.forename: H B
authors.initials: HB
authors.lastname: Reijnen
authors.forename: W J
authors.initials: WJ
authors.lastname: Atsma
mesh_terms: D016907:Adverse Drug Reaction Reporting Systems; D003280:Contraceptives, Oral, Synthetic / Q000008:administration & dosage / Q000009:adverse effects*; D005260:Female; D006801:Humans; D009426:Netherlands; D013923:Thromboembolism / Q000139:chemically induced*; D013997:Time Factors
chemical_list: D003280:Contraceptives, Oral, Synthetic