Current evidence for a Role of the Kynurenine Pathway of Tryptophan Metabolism in Multiple Sclerosis - Lovelace, Michael D.; Varney, Bianca; Sundaram, Gayathri; Franco, Nunzio F.; Ng, Mei Li; Pai, Saparna; Chai, K. Lim; Guillemin, Gilles J.; Brew, Bruce J. (Frontiers Media, 2016)