Altered Tryptophan-Kynurenine Pathway in Delirium: A Review of the Current Literature. - Phing, Ang Hui; Makpol, Suzana; Nasaruddin, Muhammad Luqman; Wan Zaidi, Wan Asyraf; Ahmad, Nurul Saadah; Embong, Hashim (International Journal of Molecular Sciences, 2023)