title: Risk of deep vein thrombosis: interaction between oral contraceptives and high factor VIII levels.
mesh_terms: D003276:Contraceptives, Oral / Q000009:adverse effects* / Q000097:blood; D004347:Drug Interactions; D005169:Factor VIII / Q000378:metabolism*; D005260:Female; D006801:Humans; D012307:Risk Factors; D020246:Venous Thrombosis / Q000209:etiology*
chemical_list: D003276:Contraceptives, Oral; D005169:Factor VIII