title: Evaluation of the contraceptive efficacy of quingestanol acetate (W 4540) when administered as an oral low-dose conraceptive in the puerperium.
mesh_terms: D000293:Adolescent; D000328:Adult; D000568:Amenorrhea / Q000139:chemically induced; D002986:Clinical Trials as Topic; D003276:Contraceptives, Oral; D004717:Endometrium / Q000166:cytology; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008111:Liver Function Tests; D008598:Menstruation; D009649:Norpregnadienes / Q000008:administration & dosage / Q000009:adverse effects / Q000494:pharmacology; D049590:Postpartum Period; D011247:Pregnancy; D011372:Progestins / Q000494:pharmacology*; D014626:Vaginal Smears
chemical_list: D003276:Contraceptives, Oral; D009649:Norpregnadienes; D011372:Progestins