HCV genotype 4 circulating in the city of Franca, São Paulo state, Brazil - Grotto, Rejane Maria Tommasini [UNESP]; Corvino, Silvia Maria [UNESP]; Padovani, Juliana Lara [UNESP]; Siqueira, Sônia Maria de Coppio; Pardini, Maria Ines de Moura Campos [UNESP] (Brazilian Society of Infectious Diseases, 2011)