TY - JOUR T1 - Long-term persistence of HCV NS5A resistance associated substitutions after treatment with the HCV NS5A inhibitor, ledipasvir, without sofosbuvir JF - Antivir Ther Y1 - 2018 A1 - Wyles, D.L. A1 - Mangia, A. A1 - Cheng, W A1 - et, al VL - 23 SP - 229-238 IS - 3 ER -