title: [Natural history of multifascicular blocks. II. Risk of sudden cardiac death].
mesh_terms: D000368:Aged; D003645:Death, Sudden / Q000209:etiology*; D006327:Heart Block / Q000401:mortality*; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged; D012306:Risk; D014693:Ventricular Fibrillation / Q000503:physiopathology
vernacular_title: Historia naturalna bloków wielowiazkowych. Cześć II. Zagrozenie nagłym zgonem sercowym.