TY - JOUR T1 - Molecular and biochemical studies of the cercarial proteinase of Schistosoma mansoni JO - Memórias do Instituto Oswaldo Cruz A1 - McKerrow, James H. SN - 0074-0276 UL - 10.1590/S0074-02761989000500021 VL - 84 Y1 - 1989 PB - Brasil ER -