title: Clinical experiences with a new implantable demand pacemaker.
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001145:Arrhythmias, Cardiac / Q000503:physiopathology / Q000628:therapy; D004562:Electrocardiography; D004867:Equipment Design; D005260:Female; D006327:Heart Block / Q000503:physiopathology / Q000628:therapy; D006333:Heart Failure / Q000503:physiopathology / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D019736:Prostheses and Implants