Efficacy of Elbasvir/Grazoprevir in Early Chronic G1/G4 Hepatitis C infection in HIV/HCV co-infected patients with mild fibrosis Montserrat Laguno Centeno; Beatriz Alvarez; Maria Martínez-Rebollar; Lorena de la Mora; Laura Prieto; Elisa de Lazzari; Ana González-Cordón; Berta Torres; Alfonso Cabello; Miguel Gorgolas; Josep Mallolas;