title: Combined oral contraceptives increase risk of venous thrombosis according to oestrogen dose and type of progestogen.
authors.affiliation: Department of Haematology and Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet and University of Oslo, Oslo, Norway.
authors.forename: Per Morten
authors.initials: PM
authors.lastname: Sandset
mesh_terms: D003277:Contraceptives, Oral, Combined / Q000009:adverse effects*; D005260:Female; D006801:Humans; D011655:Pulmonary Embolism / Q000139:chemically induced*; D020246:Venous Thrombosis / Q000139:chemically induced*
chemical_list: D003277:Contraceptives, Oral, Combined
keywords: EPIDEMIOLOGY