title: Considerations on the problem of critical period during the development of limb skeleton.
mesh_terms: D015120:6-Aminonicotinamide / Q000494:pharmacology; D000014:Abnormalities, Drug-Induced; D000818:Animals; D001842:Bone and Bones / Q000002:abnormalities / Q000196:embryology*; D002356:Cartilage / Q000196:embryology; D002455:Cell Division; D003094:Collagen / Q000378:metabolism; D010064:Embryo Implantation; D005121:Extremities / Q000196:embryology*; D005260:Female; D017880:Limb Deformities, Congenital; D015122:Mercaptopurine / Q000494:pharmacology; D008648:Mesoderm; D051379:Mice; D010012:Osteogenesis; D011509:Proteoglycans / Q000378:metabolism; D013723:Teratogens / Q000494:pharmacology; D013997:Time Factors; D014801:Vitamin A / Q000494:pharmacology
chemical_list: D011509:Proteoglycans; D013723:Teratogens; D014801:Vitamin A; D015120:6-Aminonicotinamide; D003094:Collagen; D015122:Mercaptopurine