Contraception.
D002582:Cervix Mucus; D003075:Coitus; D003267:Contraception; D003270:Contraceptive Agents; D003273:Contraceptive Devices; D003276:Contraceptives, Oral / Q000009:adverse effects; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D008297:Male; D010060:Ovulation; D010570:Pessaries; D011247:Pregnancy; D013094:Spermatozoa
D003270:Contraceptive Agents; D003276:Contraceptives, Oral