Intracardiac phonocardiography. Description of a new simplified system.
D000328:Adult; D000818:Animals; D001018:Aortic Diseases / Q000175:diagnosis; D006328:Cardiac Catheterization; D002675:Child, Preschool; D004285:Dogs; D006330:Heart Defects, Congenital / Q000175:diagnosis; D006331:Heart Diseases / Q000175:diagnosis; D006801:Humans; D008875:Middle Aged; D010701:Phonocardiography / Q000295:instrumentation