Decay of antibody isotipes against early developmental stages of Schistosoma mansoni after treatment of schistosomiasis patients - Kanamura, Hermínia Yohko; Hoshino-Shimizu, Sumie; Kimura, R T; Matsumoto, T K; Silva, L. C.; Lima, D M C; Abrantes-Lemos, Clarice Pires (Revista do Instituto de Medicina Tropical de São Paulo, 1997)