title: Effects of oral contraceptives on vitamins B6, B12, C, and folacin.
mesh_terms: D001205:Ascorbic Acid / Q000378:metabolism; D003276:Contraceptives, Oral / Q000494:pharmacology*; D005260:Female; D005492:Folic Acid / Q000378:metabolism; D006801:Humans; D007774:Lactation; D011247:Pregnancy; D011736:Pyridoxine / Q000378:metabolism; D014805:Vitamin B 12 / Q000378:metabolism; D014815:Vitamins / Q000378:metabolism*
chemical_list: D003276:Contraceptives, Oral; D014815:Vitamins; D005492:Folic Acid; D011736:Pyridoxine; D014805:Vitamin B 12; D001205:Ascorbic Acid