title: Yoruba traditional healers' knowledge of contraception, abortion and infertility.
mesh_terms: D000028:Abortion, Induced; D003267:Contraception / Q000379:methods*; D005260:Female; D006801:Humans; D007247:Infertility, Female / Q000628:therapy*; D008519:Medicine, Traditional; D009549:Nigeria; D011247:Pregnancy