Opinion Review
Copyright ©The Author(s) 2019.
World J Gastroenterol. Jul 28, 2019; 25(28): 3669-3683
Published online Jul 28, 2019. doi: 10.3748/wjg.v25.i28.3669
Figure 1
Figure 1 Tryptophan metabolism and the physiological role of its metabolites.