title: A study of the effect of oral contraceptive agents on the absorption, metabolic conversion and urinary excretion of a naturally-occurring folate (citrovorum factor).
mesh_terms: D000293:Adolescent; D000328:Adult; D003271:Contraceptive Agents, Female / Q000378:metabolism; D003272:Contraceptive Agents, Male / Q000378:metabolism; D003276:Contraceptives, Oral / Q000378:metabolism*; D003278:Contraceptives, Oral, Hormonal / Q000378:metabolism*; D005215:Fasting; D005260:Female; D006801:Humans; D002955:Leucovorin / Q000378:metabolism* / Q000652:urine; D008297:Male
chemical_list: D003271:Contraceptive Agents, Female; D003272:Contraceptive Agents, Male; D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal; D002955:Leucovorin