title: Letter: Variant angina and propranolol.
mesh_terms: D000787:Angina Pectoris / Q000188:drug therapy*; D001145:Arrhythmias, Cardiac / Q000139:chemically induced*; D006801:Humans; D011433:Propranolol / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D011433:Propranolol