title: Forty years of homograft surgery.
authors.forename: A Charles
authors.initials: AC
authors.lastname: Yankah
mesh_terms: D001021:Aortic Valve / Q000601:surgery; D006349:Heart Valve Diseases / Q000266:history / Q000601:surgery; D006350:Heart Valve Prosthesis / Q000266:history / Q000639:trends*; D049673:History, 20th Century; D006801:Humans; D011664:Pulmonary Valve / Q000601:surgery*; D023822:Tissue Engineering; D014184:Transplantation, Homologous / Q000266:history