“Impact of Khat (Catha Edulis Forsk), During Chewing Session, on Serum RBG Level in T2DM Patients Treated with Metformin” (2022) Journal of Pharmaceutical Negative Results, pp. 43–47. Available at: https://www.pnrjournal.com/index.php/home/article/view/1678 (Accessed: 16 June 2026).