title: A study of patients with the sick sinus syndrome with long-term survival.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001146:Arrhythmia, Sinus / Q000175:diagnosis / Q000401:mortality*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009518:New York; D013577:Syndrome; D013997:Time Factors