title: Heart rate and intermittent Wolff-Parkinson-White syndrome.
mesh_terms: D000328:Adult; D001285:Atropine / Q000627:therapeutic use; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology; D006339:Heart Rate; D006801:Humans; D007275:Injections, Intravenous; D008875:Middle Aged; D012849:Sinoatrial Node / Q000503:physiopathology; D013614:Tachycardia, Paroxysmal / Q000209:etiology; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis / Q000188:drug therapy / Q000503:physiopathology*
chemical_list: D001285:Atropine