title: Differences in venous thromboembolism-risk are related to causes other than product characteristics.
authors.affiliation: NV Organon, Oss, The Netherlands.
authors.forename: R F
authors.initials: RF
authors.lastname: Kaper
mesh_terms: D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D012307:Risk Factors; D013924:Thrombophlebitis / Q000453:epidemiology / Q000209:etiology*
chemical_list: D003276:Contraceptives, Oral