190. What are the endoscopic criteria for diagnosing columnar metaplasia?
G.N.J. Tytgat (Amsterdam)

191. Is any lower esophagus lined by columnar epithelium always Barrett's mucosa?
K.R. Geisinger (Winston-Salem)

192. What are the differences in endoscopic appearances of Barrett's mucosa in children and adults?
E. Hassall (Vancouver)

193. Is the routine detection of CLE in a general population important?
AJ. Cameron (Rochester)