Tryptophan Metabolism through the Kynurenine Pathway is Associated with Endoscopic Inflammation in Ulcerative Colitis. Issue 7 (8th June 2018) - Sofia, M Anthony; Ciorba, Matthew A; Meckel, Katherine; Lim, Chai K; Guillemin, Gilles J; Weber, Christopher R; Bissonnette, Marc; Pekow, Joel R