Techniques in cardiac diagnosis.
D004452:Echocardiography; D004562:Electrocardiography; D005080:Exercise Test; D006331:Heart Diseases / Q000175:diagnosis* / Q000628:therapy; D006334:Heart Function Tests / Q000451:nursing; D006801:Humans; D010138:Pacemaker, Artificial; D010701:Phonocardiography; D014672:Vectorcardiography