“Comparative Efficacy of Sitagliptin Versus Vildagliptin as Add-On to Metformin in Type 2 Diabetes Mellitus — A Randomized Trial”, Glob. J. Med. Pharm. Sci., vol. 2, no. 2, pp. 07–10, Apr. 2024, Accessed: Aug. 25, 2026. [Online]. Available: https://www.globapc.com/index.php/gjmps/article/view/60