1. P170 Azathioprine metabolite (6-TGN) levels within a defined therapeutic range are associated with lower faecal calprotectin in Crohn's disease. (16th January 2018) Authors: Essmann, J; Keil, C; Manns, M P; Bachmann, O Journal: Journal of Crohn's and colitis Issue: Volume 12:Number 1(2018:Jan.)Supplement 1 Page Start: S183 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗