Heterologous heart valves: past, present, and future.
Burman
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D000818:Animals; D002417:Cattle; D006351:Heart Valves / Q000637:transplantation*; D006801:Humans; D012756:Sheep; D013552:Swine; D014021:Tissue Preservation; D014183:Transplantation, Heterologous / Q000639:trends*