title: Letter: Propranolol blockade of stress reaction.
mesh_terms: D001794:Blood Pressure / Q000187:drug effects; D002395:Catecholamines / Q000037:antagonists & inhibitors* / Q000494:pharmacology; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D007416:Intestinal Perforation / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000494:pharmacology* / Q000627:therapeutic use; D013312:Stress, Physiological
chemical_list: D002395:Catecholamines; D011433:Propranolol