TY - JOUR T1 - The untranslated regions of genes from Trypanosoma cruzi: perspectives for functional characterization of strains and isolates JO - Memórias do Instituto Oswaldo Cruz A1 - Campbell, David A A1 - Sturm, Nancy R SN - 0074-0276 UL - 10.1590/S0074-02762007000100022 VL - 102 Y1 - 2007 PB - Brasil ER -