Chandrachamnong, L., and P. Kanchanapitak. “The Accuracy of High Resolution Ultrasonography in the Diangnosis of Thyroid Carcinoma in Solitary Thyroid Nodule”. Vajira Medical Journal : Journal of Urban Medicine, vol. 46, no. 2, Sept. 2011, pp. 105-13, https://he02.tci-thaijo.org/index.php/VMED/article/view/179.