title: Role of autonomic nervous system in chronic complete heart block.
mesh_terms: D000368:Aged; D001285:Atropine / Q000494:pharmacology; D001340:Autonomic Nerve Block; D001341:Autonomic Nervous System / Q000503:physiopathology*; D003864:Depression, Chemical; D005260:Female; D006325:Heart Atria / Q000503:physiopathology; D006327:Heart Block / Q000503:physiopathology*; D006339:Heart Rate / Q000187:drug effects; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D011433:Propranolol / Q000494:pharmacology; D012849:Sinoatrial Node / Q000503:physiopathology
chemical_list: D001285:Atropine; D011433:Propranolol