title: Electrophysiological effect of overdrive suppression and combined autonomic blockade with propranolol and atropine in patients with sinus node dysfunction.
mesh_terms: D000328:Adult; D000368:Aged; D001285:Atropine / Q000494:pharmacology*; D002304:Cardiac Pacing, Artificial; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000494:pharmacology*; D012804:Sick Sinus Syndrome / Q000175:diagnosis / Q000503:physiopathology*; D012849:Sinoatrial Node / Q000187:drug effects / Q000503:physiopathology*; D013997:Time Factors
chemical_list: D001285:Atropine; D011433:Propranolol