Wanichtanom , Lucksika. “PREVALENCE OF VITAMIN B12 DEFICIENCY IN PATIENTS WITH DIABETES ON LONG-TERM USE OF METFORMIN”. Journal of the ASEAN Federation of Endocrine Societies 38, no. S3 (June 1, 2024). Accessed April 26, 2026. https://www.asean-endocrinejournal.org/index.php/JAFES/article/view/3403.