title: Auscultatory and phonocardiographic sign of ball variance in a mitral prosthetic valve.
mesh_terms: D000328:Adult; D001673:Biodegradation, Environmental; D055592:Biophysical Phenomena; D001703:Biophysics; D006326:Heart Auscultation; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008946:Mitral Valve Stenosis / Q000601:surgery; D010701:Phonocardiography; D012408:Rubber; D012828:Silicones
chemical_list: D012828:Silicones; D012408:Rubber