title: Effect of oral contraceptives on sex chromatin count during menstrual cycle.
mesh_terms: D000293:Adolescent; D000328:Adult; D002452:Cell Count; D003276:Contraceptives, Oral / Q000494:pharmacology*; D003280:Contraceptives, Oral, Synthetic / Q000494:pharmacology*; D005260:Female; D006801:Humans; D008598:Menstruation; D012728:Sex Chromatin / Q000187:drug effects*
chemical_list: D003276:Contraceptives, Oral; D003280:Contraceptives, Oral, Synthetic