Lesage S, Zouali H, Colombel JF, Belaiche J, Cezard JP, Tysk C, Almer S, Gassull M, Binder V, Chamaillard M, Le Gall I, Thomas G, Hugot JP. (Gut. 2000 Dec;47(6):787-91.)
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11076876&query_hl=26&itool=pubmed_DocSum