doi> PYRRHO, Alexandre dos Santos ; Jorge Moraes ; PEÇANHA, Lígia M T ; GATTASS, Cerli R . Tripanosoma cruzi: IgG1 and IgG2b are the mains immunoglobulins produced by vaccinated mice. Parasitology Research (1987. Print), original paper, v. 84, p. 333-337, 1998.