RT Journal Article SR Electronic T1 Ledipasvir/Sofosbuvir administration achieves very high rate of viral clearance in patients with HCV genotype 1 infection without cirrhosis, regardless of ribavirin co-administration or length of treatment JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 223 OP 224 DO 10.1136/ebmed-2014-110051 VO 19 IS 6 A1 Ivan Gentile A1 Guglielmo Borgia YR 2014 UL http://ebm.bmj.com/content/19/6/223.abstract AB