[Chagas' disease; clinico-epidemiologic inquiry].
D014355:Chagas Disease / Q000453:epidemiology*; D004562:Electrocardiography; D016021:Epidemiologic Studies; D006801:Humans; D014352:Trypanosomiasis; D014481:United States
ELECTROCARDIOGRAPHY; TRYPANOSOMIASIS, SOUTH AMERICAN/epidemiology
Enfermedad de Chagas; encuesta clinico-epidemiologica.