Toward an integrated clinical, molecular and serological classification of inflammatory bowel disease: report of a Working Party of the 2005 Montreal World Congress of Gastroentero... od Silverberg, MS, Satsangi, J, Ahmad, T, Arnott, I, Bernstein, C, Brant, SR, Caprilli, R, Colombel, J, Gasche, C, Geboes, K, Jewell, D, Karban, A, Loftus, E, Peña, A, Riddell, R, Sachar, D, Schreiber, S, Steinhart, A, Targan, SR, Vermeire, S, Warren, B