Chottetanaprasith, T. “IMRT/VMAT in Nasopharyngeal Carcinoma Patients : An Analysis of 33 Cases”. Journal of The Department of Medical Services 44, no. 6 (December 30, 2019): 61–68. Accessed September 28, 2022. https://he02.tci-thaijo.org/index.php/JDMS/article/view/244796.