title: Oral contraceptives reduce total protein S, but not free protein S.
mesh_terms: D002352:Carrier Proteins / Q000097:blood; D003169:Complement Inactivator Proteins; D003278:Contraceptives, Oral, Hormonal / Q000494:pharmacology*; D005260:Female; D006023:Glycoproteins / Q000097:blood*; D006801:Humans; D011486:Protein C / Q000097:blood; D017293:Protein S
chemical_list: D002352:Carrier Proteins; D003169:Complement Inactivator Proteins; D003278:Contraceptives, Oral, Hormonal; D006023:Glycoproteins; D011486:Protein C; D017293:Protein S