Diaphragmatic origin of the pacemaker sound.
D000368:Aged; D003964:Diaphragm / Q000502:physiology*; D004558:Electric Stimulation; D004562:Electrocardiography; D005260:Female; D006326:Heart Auscultation; D006335:Heart Injuries / Q000175:diagnosis; D006801:Humans; D010138:Pacemaker, Artificial / Q000009:adverse effects / Q000295:instrumentation; D010701:Phonocardiography