The new animal farm.
Cowley
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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