“Correlation and Association of Serum B12 Levels in Type-2 Diabetes Mellitus Patients Treated With Metformin: A Study Conducted at a Tertiary Care Hospital of Gujarat”. 2024. GAIMS Journal of Medical Sciences 5 (1 (Jan-Jun): 75-81. http://gjms.gaims.ac.in/ojs/index.php/gjms/article/view/305.