General observations from five years of use of antifertility agents in a public hospital.
D003270:Contraceptive Agents; D003273:Contraceptive Devices / Q000706:statistics & numerical data*; D003276:Contraceptives, Oral; D005193:Family Planning Services; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000706:statistics & numerical data; D009519:New York City; D011247:Pregnancy; D012017:Referral and Consultation
D003270:Contraceptive Agents; D003276:Contraceptives, Oral