Transthoracic and transvenous pacemakers. A comparative clinical experience with 131 implantable units.
D000368:Aged; D006328:Cardiac Catheterization; D004582:Electronics, Medical; D005260:Female; D006327:Heart Block / Q000150:complications / Q000401:mortality / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial