The introduction of contraception in an urban public hospital.
D003267:Contraception; D003276:Contraceptives, Oral; D004967:Estrogens; D005260:Female; D006761:Hospitals; D006801:Humans; D007267:Injections; D007434:Intrauterine Devices; D008429:Maternal Welfare; D009518:New York; D049590:Postpartum Period; D011247:Pregnancy; D011374:Progesterone; D012947:Social Work
D003276:Contraceptives, Oral; D004967:Estrogens; D011374:Progesterone