Mohammed, Riyaz, and Mohammed Azfar Ali. “Once Daily Versus Twice Daily Linagliptin Effect on Glycemic Levels in Type 2 Diabetes Mellitus- an Observational Study”. International Journal of Research in Medical Sciences 5, no. 10 (September 28, 2017): 4403–4406. Accessed October 14, 2025. https://www.msjonline.org/index.php/ijrms/article/view/3754.