Bora, Nayanika, Vanishree Shriram, Adelyne Reena Asirvatham, and Shriraam Mahadevan. “Vitamin B12 Deficiency in Type 2 Diabetes Patients on Metformin: A Cross-Sectional Survey from South India”. The Physician 8, no. 3 (December 26, 2023): 1-10. Accessed July 22, 2024. https://physicianjnl.net/index.php/phy/article/view/153.