title: The contributions of ambulatory ECG.
mesh_terms: D000367:Age Factors; D000368:Aged; D000553:Ambulatory Care; D000889:Anti-Arrhythmia Agents / Q000009:adverse effects / Q000627:therapeutic use; D001145:Arrhythmias, Cardiac / Q000139:chemically induced / Q000175:diagnosis / Q000188:drug therapy; D002318:Cardiovascular Diseases / Q000175:diagnosis*; D004562:Electrocardiography / Q000379:methods*; D006801:Humans; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000379:methods
chemical_list: D000889:Anti-Arrhythmia Agents