831 Prospective Cohort Study of Methotrexate Use in Treatment of Pediatric Crohn Disease

Early Anti-TNFα Therapy Is Superior to Early Immunomodulator Therapy in Newly Diagnosed Children With Crohn's Disease Jeffrey S. Hyams, Mi-Ok Kim, Lee Denson, Anne M. Griffiths, Marla Dubinsky, James Markowitz, Robert Baldassano, Wallace Crandall, Joel R. Rosh, Marian D. Pfefferkorn, Anthony R. Otley, Melvin B. Heyman, Neal S. Leleiko, Susan S. Baker, Stephen L. Guthery, Jonathan Evans, David Ziring, Richard Kellermayer, Michael C. Stephens, David R. Mack, Maria Oliva-Hemker, Jonah B. Essers, Ashish S. Patel, Barbara S. Kirschner, Dedrick E. Moulton, Stanley A. Cohen, Chunyan Liu, Subra Kugathasan, Thomas D. Walters