Dr. Sonal, Dr. Apurva Basu, Dr. Akriti Kumari. Association of Serum Vitamin B12 Levels with Duration of Metformin Therapy in Type 2 Diabetes Mellitus. IJPRT [Internet]. 2025 May 30 [cited 2026 Oct. 22];15(1):1866-73. Available from: https://ijprt.org/index.php/pub/article/view/3258