Agarwal P, Mital P, Meena VK, Mital P, Nawal CL, Goyal LK. A comparative study of levels of vitamin B12 in patients of type 2 diabetes mellitus on metformin and not on metformin at tertiary care center. Int J Adv Med [Internet]. 2016 Dec. 29 [cited 2025 Oct. 11];3(3):759-63. Available from: https://www.ijmedicine.com/index.php/ijam/article/view/142