History A list of downloadable documents created during development. Other information Understanding NICE guidance (MS Word format) MSWord 292 KB 25 February 2009 Consultation comments PDF 35 KB 25 February 2009 Interventional procedures consultation document - extracorporeal photopheresis for Crohn's disease information Overview of extracorporeal photopheresis for Crohn's disease information Overview of extracorporeal photopheresis for Crohn's disease PDF 63 KB 28 October 2008