Oral contraception started early in the puerperium. A clinical study.
D001706:Biopsy; D001942:Breast Feeding / Q000187:drug effects; D003276:Contraceptives, Oral / Q000494:pharmacology*; D004717:Endometrium / Q000187:drug effects; D005040:Ethynodiol Diacetate / Q000494:pharmacology*; D005193:Family Planning Services; D005260:Female; D006801:Humans; D007087:Illinois; D007774:Lactation / Q000187:drug effects; D008656:Mestranol / Q000494:pharmacology*; D010060:Ovulation / Q000187:drug effects; D049590:Postpartum Period / Q000187:drug effects*; D011247:Pregnancy; D011276:Pregnanediol / Q000652:urine; D012959:Socioeconomic Factors
D003276:Contraceptives, Oral; D005040:Ethynodiol Diacetate; D008656:Mestranol; D011276:Pregnanediol