Letter: Iv-vitro fertilisation.
D000818:Animals; D000013:Congenital Abnormalities / Q000209:etiology; D010064:Embryo Implantation; D004622:Embryo, Mammalian; D005069:Evaluation Studies as Topic; D005260:Female; D005306:Fertilization; D006801:Humans; D066298:In Vitro Techniques; D051379:Mice; D011247:Pregnancy; D011817:Rabbits; D051381:Rats