Ferraz, M. L. G., Yoradjian, A., Barbieri, A., Figueiredo, V., Lopes Neto, E., Cruz, C. N. and Silva, A. E. (1998) “Epidemiology of acute hepatitis B in a university hospital in São Paulo, Brazil: retrospective study of two five-year periods”, São Paulo Medical Journal, 116(3), pp. 1695–1699. Available at: https://periodicosapm.emnuvens.com.br/spmj/article/view/2293 (Accessed: 10 March 2025).