Clinical, demographic and epidemiological characteristics of patients with hepatitis B followed at a university hospital in southeastern Brazil: predominance of HBeAg negative cases - Chachá, Silvana Gama Florencio; Ferreira, Sandro da Costa; Costa, Tarciana Vieira; Almeida Filho, Luiz Carlos de; Villanova, Marcia Guimaraes; Souza, Fernanda Fernandes; Teixeira, Andreza Correa; Figueiredo, José Fernando de Castro; Zucoloto, Sergio; Ramalho, Leandra Naíra Zambelli; Passos, Afonso Dinis Costa; Martinelli, Ana de Lourdes Candolo (Revista da Sociedade Brasileira de Medicina Tropical, 2011)