@article{articleca9c8c7c, title = {Spontaneous hepatitis B surface antigen clearance in a long-term follow-up study of patients with chronic type B hepatitis: lack of correlation with hepatitis C and D virus superinfection}, author = {Silva, Luiz Caetano da and Madruga, Carmen Lúcia de Assis and Carrilho, Flair José and Pinho, João Renato Rebello and Alquezar, Amadeo Saéz and Santos, Carlos and Bassit, Leda and Barreto, Claudia and Fonseca, Luís Edmundo Pinto da and Alves, Venâncio Avancini Ferreira and Leitão, Regina and Vianna, Regina and Cardoso, Rita Antonelli and França, Alex Vianey Callado and Gayotto, Luiz Carlos da Costa}, year = {1996}, doi = {10.1007/bf02347619}, journal = {Journal of Gastroenterology} }