Roentgenographic identification of Starr-Edwards prostheses.
D001021:Aortic Valve / Q000000981:diagnostic imaging; D006350:Heart Valve Prosthesis; D006351:Heart Valves / Q000000981:diagnostic imaging*; D006801:Humans; D008943:Mitral Valve / Q000000981:diagnostic imaging; D011474:Prosthesis Design; D011859:Radiography