Pleehachinda, Rudee, Romsai Suwanik, and Vipa Boonnamsiri. 2023. “Studies of Thyroxine Iodine Serum as a Measurement of Thyroid Function in 87 Patients”. Siriraj Medical Journal 22 (6):507-12. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/263987.