title: Letter: Propranolol and cardiac surgery.
mesh_terms: D006801:Humans; D007545:Isoproterenol / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D009204:Myocardial Revascularization; D011182:Postoperative Care; D011433:Propranolol / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D011433:Propranolol; D007545:Isoproterenol