RT Journal Article SR Electronic T1 New protease inhibitors and direct-acting antivirals for hepatitis C: interferon's long goodbye JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1647 OP 1652 DO 10.1136/gutjnl-2012-302910 VO 61 IS 12 A1 Geoffrey Dusheiko A1 Heiner Wedemeyer YR 2012 UL http://gut.bmj.com/content/61/12/1647.abstract AB