title: Hazards of cardioversion after drug therapy in ventricular tachycardia.
mesh_terms: D004554:Electric Countershock / Q000009:adverse effects*; D006323:Heart Arrest / Q000209:etiology*; D006801:Humans; D008012:Lidocaine / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000627:therapeutic use; D011802:Quinidine / Q000627:therapeutic use; D013610:Tachycardia / Q000188:drug therapy / Q000628:therapy*
chemical_list: D008012:Lidocaine; D011433:Propranolol; D011802:Quinidine