title: Primary ventricular fibrillation complicating acute myocardial infarction: incidence in subgroups.
mesh_terms: D000368:Aged; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications*; D011446:Prospective Studies; D014693:Ventricular Fibrillation / Q000209:etiology*