TY - JOUR T1 - Tegumental proteins of Schistosoma mansoni: complex biomolecules and potent antigens JO - Memórias do Instituto Oswaldo Cruz A1 - Simpson, Andrew J. G. SN - 0074-0276 UL - 10.1590/S0074-02761992000800002 VL - 87 Y1 - 1992 PB - Brasil ER -