title: Mechanisms of limb development and malformation.
mesh_terms: D000014:Abnormalities, Drug-Induced; D000818:Animals; D002454:Cell Differentiation; D002642:Chick Embryo; D005121:Extremities / Q000254:growth & development; D005823:Genetics; D017880:Limb Deformities, Congenital; D009024:Morphogenesis; D009536:Niacinamide / Q000633:toxicity; D010641:Phenotype; D011830:Radiation Effects; D013792:Thalidomide / Q000633:toxicity
chemical_list: D009536:Niacinamide; D013792:Thalidomide