Chaga's disease diagnosis: evaluation of several tests in blood bank screening - Carvalho, M R; Krieger, M A; Oelemann, W; Shikanai Yasuda, Maria Aparecida; Ferreira, Antônio Walter; Pereira, J B; Alquezar, A S; Llacer, Pedro Enrique Dorlhiac; Chamone, Dalton de Alencar Fischer; Goldenberg, S (Transfusion, 1994)