title: Letter: Propranolol controversy.
mesh_terms: D000787:Angina Pectoris / Q000188:drug therapy*; D004348:Drug Labeling; D006801:Humans; D007880:Legislation, Drug; D011433:Propranolol / Q000627:therapeutic use*; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D011433:Propranolol