US decides close tabs must be kept on xenotransplants...
Butler
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D000818:Animals; D002986:Clinical Trials as Topic; D033161:Government Regulation; D017408:Guidelines as Topic; D006291:Health Policy; D006801:Humans; D009316:National Institutes of Health (U.S.); D011323:Primates; D011640:Public Policy; D012106:Research / Q000331:legislation & jurisprudence*; D013552:Swine; D014183:Transplantation, Heterologous / Q000009:adverse effects; D014481:United States; D014486:United States Food and Drug Administration; D014777:Virus Diseases / Q000635:transmission