Nguyen TN, Dao HTK, Trinh THC, Lam TKH. CORRELATION BETWEEN SERUM VITAMIN B12 LEVELS AND DISEASE SEVERITY IN WOMEN WITH MELASMA AT CAN THO UNIVERSITY OF MEDICINE AND PHARMACY HOSPITAL. CTJUMP [Internet]. 2026 Aug. 25 [cited 2026 Sep. 24];(102):240-6. Available from: https://tapchi.ctump.edu.vn/index.php/ctump/article/view/5064