[ELECTROCARDIOGRAPHIC CHANGES IN CHAGAS' DISEASE IN NORTHEAST BRAZIL].
D001938:Brazil; D014355:Chagas Disease; D004562:Electrocardiography; D004813:Epidemiology; D006327:Heart Block; D006331:Heart Diseases; D006801:Humans; D014481:United States
BRAZIL; ELECTROCARDIOGRAPHY; EPIDEMIOLOGY; HEART BLOCK; HEART DISEASES; TRYPANOSOMIASIS, SOUTH AMERICAN
ALTERA C OES ELETROCARDIOGR'AFICAS NA DOEN CA DE CHAGAS, NO NORDESTE DO BRASIL.