From The Dr. Henry D. Janowitz Division of Gastroenterology, The Mount Sinai School of Medicine, New York, New York, U.S.A. Address correspondence and reprint requests to Dr. Thomas A. Ullman, The Dr. Henry D. Janowitz Division of Gastroenterology, The Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY 10029. E-mail: [email protected]. This work was supported by awards from the Crohn's and Colitis Foundation of America and the American Society of Gastrointestinal Endoscopy.
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