Symptoms and associated illness among patients with ventricular pacemakers: implications for pacemaker selection.
D000368:Aged; D001919:Bradycardia / Q000209:etiology; D005500:Follow-Up Studies; D006327:Heart Block / Q000209:etiology; D006801:Humans; D010138:Pacemaker, Artificial / Q000009:adverse effects*; D011788:Quality of Life; D011795:Surveys and Questionnaires; D013997:Time Factors