Sangchan, Prangrawee. “Outcomes of Preoperative Radiotherapy in Rectal Cancer: A Single Institute Experience”. Journal of Thai Association of Radiation Oncology 27, no. 1 (June 18, 2021): R67-R80. Accessed May 18, 2024. https://he01.tci-thaijo.org/index.php/jtaro/article/view/248852.