title: The vitamin B6 requirement in oral contraceptive users.
mesh_terms: D003276:Contraceptives, Oral / Q000494:pharmacology*; D005260:Female; D006801:Humans; D009751:Nutritional Requirements; D011736:Pyridoxine / Q000378:metabolism* / Q000627:therapeutic use; D026681:Vitamin B 6 Deficiency / Q000188:drug therapy
chemical_list: D003276:Contraceptives, Oral; D011736:Pyridoxine