title: Supernumerary limgs in amphibians: experimental production in Notophthalmus viridescens and a new interpretation of their formation.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D005260:Female; D005552:Forelimb / Q000002:abnormalities / Q000502:physiology* / Q000637:transplantation; D007839:Functional Laterality; D008297:Male; D012038:Regeneration; D012455:Salamandridae / Q000502:physiology*; D014182:Transplantation, Autologous; D014562:Caudata / Q000502:physiology*