title: Postexertional cardiac asystole in a young man without organic heart disease.
mesh_terms: D000328:Adult; D001146:Arrhythmia, Sinus / Q000209:etiology; D001145:Arrhythmias, Cardiac / Q000209:etiology*; D001285:Atropine / Q000494:pharmacology; D004562:Electrocardiography; D005080:Exercise Test; D006323:Heart Arrest / Q000209:etiology*; D006801:Humans; D008297:Male; D005082:Physical Exertion; D011413:Propantheline / Q000494:pharmacology; D011433:Propranolol / Q000494:pharmacology; D013575:Syncope / Q000209:etiology
chemical_list: D011413:Propantheline; D001285:Atropine; D011433:Propranolol