title: Malformations due to toxic influences.
mesh_terms: D000014:Abnormalities, Drug-Induced / Q000453:epidemiology / Q000517:prevention & control; D000029:Abortion, Legal; D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects; D004335:Drug and Narcotic Control; D004622:Embryo, Mammalian / Q000187:drug effects; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008431:Maternal-Fetal Exchange; D051379:Mice; D009024:Morphogenesis / Q000187:drug effects; D011247:Pregnancy; D011446:Prospective Studies; D012189:Retrospective Studies