title: The role of the autonomic nervous system in patients with sinoatrial and atrioventricular node dysfunction.
mesh_terms: D000328:Adult; D000368:Aged; D001283:Atrioventricular Node / Q000187:drug effects / Q000503:physiopathology*; D001285:Atropine / Q000627:therapeutic use; D001342:Autonomic Nervous System Diseases / Q000503:physiopathology*; D002036:Bundle of His / Q000187:drug effects; D004359:Drug Therapy, Combination; D006329:Heart Conduction System / Q000187:drug effects / Q000503:physiopathology*; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007545:Isoproterenol / Q000627:therapeutic use; D008875:Middle Aged; D012849:Sinoatrial Node / Q000187:drug effects / Q000503:physiopathology*; D013997:Time Factors
chemical_list: D001285:Atropine; D007545:Isoproterenol