TY - JOUR T1 - Mechanisms Mediating Antigenic Variation in Trypanosoma brucei JO - Memórias do Instituto Oswaldo Cruz A1 - Rudenko, Gloria SN - 0074-0276 UL - 10.1590/S0074-02761999000200021 VL - 94 Y1 - 1999 PB - Brasil ER -