Sangchan, P., Jothaisong, S. and Ponyeam, D. (2020) “Pattern of failure after adjuvant postoperative radiotherapy in head and neck cancers”, Journal of Thai Association of Radiation Oncology, 26(1), pp. R76-R97. available at: https://he01.tci-thaijo.org/index.php/jtaro/article/view/240021 (accessed: 29 September 2026).