title: Clinical study of Chagas' disease (trypanosomiasis cruzi).
mesh_terms: D000328:Adult; D001145:Arrhythmias, Cardiac / Q000209:etiology; D014355:Chagas Disease / Q000175:diagnosis / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D003168:Complement Fixation Tests; D004544:El Salvador; D005132:Eye Manifestations; D005260:Female; D005334:Fever; D006801:Humans; D007299:Insect Bites and Stings; D008297:Male; D008531:Megacolon / Q000209:etiology; D008875:Middle Aged; D014345:Trypanosoma / Q000302:isolation & purification; D014481:United States