@article{article493a6451, title = {Active immunization against hepatitis b virus (hbv) with low-doses of plasma-derived vaccine by intradermal route. Anti-hbs response after three years of follow-up}, author = {Carrilho, Flair José and Queiroz, M L and Fonseca, L E P and Obara, L and Silva, L. C.}, year = {1991}, journal = {Revista do Instituto de Medicina Tropical de Sao Paulo} }