@article{article731e21b6, title = {Acute hepatitis b in a patient previously positive for antibody to surface antigen ( anti-hbs ) determined by radioimmunoassay . Case report and review of literature}, author = {Strauss, E and Saez-Alquezar, A and Takeda, A and Silva, L. C.}, year = {1985}, journal = {Revista do Instituto de Medicina Tropical de Sao Paulo} }