P213 - Concurrence of inflammatory bowel disease and multiple sclerosis in general population: frequency, phenotypes and clinical course - Buzaglo, G.; Salleron, J.; Gower-Rousseau, C.; Waucquier, N.; Gonzalez, F.; Vernier-Massouille, G.; Cortot, A.; Vermersch, P.; Colombel, J.F. (Journal of Crohn's & Colitis, 2009)