Development of a Fluorophore-Bound l-Tryptophan Derivative for Evaluating Indoleamine 2,3-Dioxygenase Activity by HPLC with Fluorescence Detection: An In Vivo Microdialysis Study Using Rat Kidney. - Onozato M; Aoki R; Yamaguchi M; Fujimoto H; Sakamoto T; Fukushima T (Molecules (Basel, Switzerland), 2026)