title: IVth International Symposium on Cardiac Bioprostheses.
authors.forename: W
authors.initials: W
authors.lastname: Angell
authors.forename: R W
authors.initials: RW
authors.lastname: Frater
mesh_terms: D001705:Bioprosthesis / Q000592:standards*; D006350:Heart Valve Prosthesis / Q000009:adverse effects / Q000592:standards*; D006801:Humans; D014183:Transplantation, Heterologous / Q000592:standards*; D014184:Transplantation, Homologous / Q000592:standards*