title: Sick-sinus syndrome.
mesh_terms: D001146:Arrhythmia, Sinus / Q000209:etiology / Q000503:physiopathology* / Q000628:therapy; D001285:Atropine / Q000008:administration & dosage; D009202:Cardiomyopathies / Q000150:complications; D002908:Chronic Disease; D003327:Coronary Disease / Q000150:complications; D004594:Electrophysiology; D006801:Humans; D006980:Hyperthyroidism / Q000150:complications; D009205:Myocarditis / Q000150:complications; D012849:Sinoatrial Node / Q000503:physiopathology; D013345:Subarachnoid Hemorrhage / Q000150:complications; D013575:Syncope / Q000188:drug therapy; D013577:Syndrome
chemical_list: D001285:Atropine