The evolution of modern cardiology, being in some measure the experience of a stethoscope (1908-1968).
D002309:Cardiology / Q000266:history*; D006326:Heart Auscultation / Q000295:instrumentation*; D006331:Heart Diseases / Q000175:diagnosis; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D014922:Wisconsin