S. Uadrang, W. . Chalermchawalit, S. . Siriarechakul, Y. Saranyusej, P. Pinsunthon, and I. Kumfong, “Unit Cost and Break–Even Point of the Intensity Modulated Radiotherapy and the Volumetric Modulated Arc Therapy for Head and Neck Cancer Treatment in Lopburi Cancer Hospital”, J DMS, vol. 45, no. 4, pp. 75–80, Mar. 2021.