Electrocardiographic classification and abbreviated lead system for population-based studies of Chagas' disease.
D000328:Adult; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D002598:Chagas Cardiomyopathy / Q000503:physiopathology*; D002648:Child; D004562:Electrocardiography / Q000379:methods / Q000592:standards*; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male