title: Evaluation of sino-atrial node function in man by overdrive suppression.
mesh_terms: D000109:Acetylcholine / Q000378:metabolism; D000293:Adolescent; D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis; D016275:Atrial Function; D001285:Atropine / Q000494:pharmacology; D006328:Cardiac Catheterization; D005260:Female; D006331:Heart Diseases / Q000503:physiopathology; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D012018:Reflex; D012849:Sinoatrial Node / Q000187:drug effects / Q000502:physiology*
chemical_list: D001285:Atropine; D000109:Acetylcholine