Phylogeny and polymorphism of the kerteszia subgenus assessed by the second internal transcribed spacer (ITS2) of RDNA - Malafronte, Rosely dos Santos; Marinotti, Osvaldo; Marrelli, Mauro Toledo; Tubaki, R.; Curado, I.; Nassar, M. N. (Annual Meeting on Basic Research in Chagas Disease, 2003)