1. JC viral loads in patients with Crohn's disease treated with immunosuppression: can we screen for elevated risk of progressive multifocal leukoencephalopathy?. Issue 10 (24th April 2008) Authors: Verbeeck, J; Van Assche, G; Ryding, J; Wollants, E; Rans, K; Vermeire, S; Pourkarim, M R; Noman, M; Dillner, J; Van Ranst, M; Rutgeerts, P Journal: Gut Issue: Volume 57:Issue 10(2008) Page Start: 1393 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗