title: [Follow-up result of valve replacement with biological valves].
mesh_terms: D000818:Animals; D004285:Dogs; D005500:Follow-Up Studies; D006351:Heart Valves / Q000601:surgery / Q000637:transplantation*; D006801:Humans; D014183:Transplantation, Heterologous; D014184:Transplantation, Homologous