Zachariah M, Idiculla J, Begum K. Serum Vitamin B12 Levels among Type 2 Diabetic Patients Maintained on Metformin Based Oral Anti-Diabetic Drugs - An Observational Study. IJND [Internet]. 2020 Jun. 23 [cited 2024 Apr. 29];57(2):154-63. Available from: http://www.informaticsjournals.com/index.php/ijnd/article/view/24629