title: Cardiac pacemakers. Experience with implantation.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006327:Heart Block / Q000628:therapy; D006801:Humans; D007615:Kansas; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial / Q000401:mortality; D012189:Retrospective Studies