เศรษฐวนิชย์ ณ. . (2021) “Effect of levothyroxine therapy on non-toxic single solidary thyroid nodule in Phrae hospital”, (PMJCS) Phrae Medical Journal and Clinical Sciences , 29(1), pp. 16–27. Available at: https://thaidj.org/index.php/jpph/article/view/10679 (Accessed: 10November2026).