Wanichtanom L. PREVALENCE OF VITAMIN B12 DEFICIENCY IN PATIENTS WITH DIABETES ON LONG-TERM USE OF METFORMIN. J ASEAN Fed Endocr Soc [Internet]. 2024 Jun. 1 [cited 2026 Apr. 26];38(S3). Available from: https://www.asean-endocrinejournal.org/index.php/JAFES/article/view/3403