1. P799 Perinatal factors and development of IBD: a national case–control study with nearly 50 years of follow-up: report from the epiIIRN database. (25th January 2019) Authors: Velosa, M; Yerushalmi, B; Asayag, N; Focht, G; Navon, D; Hochner, H; Friedlander, Y; Brufman, I; Feldman, B; Balicer, R D; Cahan, A; Ledderman, N; Matz, E; Peter, I; Turner, D Journal: Journal of Crohn's and colitis Issue: Volume 13(2019)Supplement 1 Page Start: S521 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗