Oral contraceptives: a medical audit.
D000328:Adult; D000568:Amenorrhea / Q000139:chemically induced; D003276:Contraceptives, Oral; D005193:Family Planning Services; D005260:Female; D006801:Humans; D006973:Hypertension / Q000139:chemically induced; D008485:Medical Audit; D011158:Population Growth; D013924:Thrombophlebitis / Q000139:chemically induced; D013927:Thrombosis / Q000139:chemically induced
D003276:Contraceptives, Oral