Jaffry, Asra Arshad, Iflah Ansari, and Zainab Rauf. “Sitagliptin, a Promising DPP-4 Inhibitor for Prevention of Acute Graft Versus Host Disease”. Journal of the Pakistan Medical Association 72, no. 3 (February 3, 2022). Accessed July 27, 2026. https://www.jpma.org.pk/index.php/public_html/article/view/3888.