RT Journal Article SR Electronic T1 Dysbiosis as a prerequisite for IBD JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1057 OP 1057 VO 53 IS 7 A1 C P Tamboli A1 C Neut A1 P Desreumaux A1 J F Colombel YR 2004 UL http://gut.bmj.com/content/53/7/1057.1.abstract AB