Mammalian sperm, eggs, and control of fertility.
D000818:Animals; D003267:Contraception; D003276:Contraceptives, Oral; D006224:Cricetinae; D005260:Female; D005298:Fertility; D005306:Fertilization; D008297:Male; D008322:Mammals / Q000502:physiology*; D010063:Ovum / Q000502:physiology*; D011817:Rabbits; D013094:Spermatozoa / Q000502:physiology*
D003276:Contraceptives, Oral