Evidence for T Cell help in the IgG response against tandemly repetitive Trypanosoma cruzi B13 protein in chronic Chagas disease patients - Duranti, Marcia; Camargo, Ludmila; Victora, Gabriel; Ianni, Barbara; Buck, Paula; Mady, Charles; Kalil, Jorge; Zingales, Bianca; Cunha Neto, Edecio (Journal of Parasitology Research, 2012)