Characterization of cDNA clones enconding ribonucleoprotein antigens expressed in Trypanosoma cruzi amastigotes - DaRocha, Wanderson D.; Bartholomeu, Daniella C.; Macêdo, Camila D.S.; Horta, M.Fátima; Cunha-Neto, Edécio; Donelson, John E.; Teixeira, Santuza M.R. (Parasitology Research, 2002)