title: Letter: Oral contraception and increased formation of high molecular weight derivatives of fibrinogen.
mesh_terms: D000293:Adolescent; D000328:Adult; D003276:Contraceptives, Oral / Q000494:pharmacology*; D004997:Ethinyl Estradiol / Q000494:pharmacology; D005260:Female; D005340:Fibrinogen / Q000378:metabolism*; D006801:Humans; D008970:Molecular Weight; D009644:Norgestrel / Q000494:pharmacology
chemical_list: D003276:Contraceptives, Oral; D009644:Norgestrel; D004997:Ethinyl Estradiol; D005340:Fibrinogen