Effectiveness and risks of contraception.
D003267:Contraception; D003273:Contraceptive Devices; D003278:Contraceptives, Oral, Hormonal / Q000009:adverse effects; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects; D008297:Male; D011247:Pregnancy; D012306:Risk; D013246:Sterilization, Tubal; D014622:Vaginal Creams, Foams, and Jellies / Q000009:adverse effects; D014659:Vasectomy
D003278:Contraceptives, Oral, Hormonal; D014622:Vaginal Creams, Foams, and Jellies