O'Morain, Colm A Is sequential therapy superior to standard triple therapy for the treatment of Helicobacter pylori infection? [electronic resource] - Nature clinical practice. Gastroenterology & hepatology Jan 2009 - 8-9 p. digital Publication Type: Comment; Journal Article ISSN: 1743-4386 Standard No.: 10.1038/ncpgasthep1276 doi