A study in the November issue of Gastroenterology investigates whether detection of proximal nondysplastic serrated polyps (ND-SP) at screening and surveillance colonoscopies is associated with advanced neoplasia.  Dr. Kuemmerle speaks with author Dr. David Lieberman from the Portland VA Medical Center and Oregon Health and Science University.  Plus, a rundown of top stories from this month's issue of GI and Hepatology News.