Safety and efficacy of extractible self-expandable metal stents in the treatment of Crohn’s disease intestinal strictures: a prospective pilot study Attar A, Maunoury V, Vahedi K, Vernier-Massouille G, Vida S, Bulois P, Colombel JF, Bouhnik Y; GETAID. (Inflamm Bowel Dis. 2012 Oct;18(10):1849-54. doi: 10.1002/ibd.22844. Epub 2011 Dec 11) http://www.ncbi.nlm.nih.gov/pubmed/22161935