How it happened: my recollection of early pacing.
D000293:Adolescent; D002304:Cardiac Pacing, Artificial / Q000266:history*; D004567:Electrodes, Implanted; D049673:History, 20th Century; D006801:Humans; D008297:Male; D009205:Myocarditis / Q000628:therapy; D010138:Pacemaker, Artificial / Q000295:instrumentation*; D013548:Sweden