title: The new animal farm.
authors: G
authors: G
authors: Cowley
mesh_terms: D000818:Animals; D017690:Cell Transplantation / Q000639:trends*; D002678:Chimera; D019976:Cloning, Organism / Q000639:trends*; D006801:Humans; D010300:Parkinson Disease / Q000628:therapy; D012106:Research; D020521:Stroke / Q000628:therapy; D013552:Swine; D019737:Transplants / Q000639:trends*; D014481:United States