Krongyuth, Khummook, Chumpot Kakanaporn, Lakkana Apipunyasopon, Piyanun Liammookda, Wutthichai Boonrat, and Surat Vinijsorn. 2010. “Investigation of Dose Delivery from On-Board CBCT for Head and Pelvis Regions”. Journal of Thai Association of Radiation Oncology 16 (2):28-35. https://he01.tci-thaijo.org/index.php/jtaro/article/view/203501.