Observations on homograft aortic valves.
D001021:Aortic Valve / Q000473:pathology / Q000637:transplantation*; D002114:Calcinosis / Q000150:complications; D005612:Freeze Drying; D006801:Humans; D011664:Pulmonary Valve / Q000637:transplantation; D014021:Tissue Preservation; D014181:Transplantation Immunology; D014182:Transplantation, Autologous; D014184:Transplantation, Homologous