title: [Evaluation of the immediate response and short-term effect in using nicotinamide in treating sick sinus syndrome].
mesh_terms: D000328:Adult; D000368:Aged; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009536:Niacinamide / Q000627:therapeutic use*; D012804:Sick Sinus Syndrome / Q000188:drug therapy*; D013997:Time Factors
chemical_list: D009536:Niacinamide