Research ArticleGrazoprevir and elbasvir plus ribavirin for chronic HCV genotype-1 infection after failure of combination therapy containing a direct-acting antiviral agent
Keywords: DAA; Direct-acting antiviral agents; PR; Peginterferon alfa and ribavirin; RAV; Resistance-associated variants; SVR; Sustained virologic response; C-SALVAGE; HCV genotype-1; Grazoprevir; Elbasvir; Direct-acting antiviral agents;