Implantable cardiac pacemakers. An appraisal of seven years' clinical experience.
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006327:Heart Block / Q000401:mortality* / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial