Heng, Gregory, Varut Lohsiriwat, and Kok-Yang Tan. “Suitability of Enhanced Recovery After Surgery (ERAS) Protocols for Elderly Colorectal Cancer Patients”. Siriraj Medical Journal 72, no. 1 (December 13, 2019): 18–23. Accessed December 9, 2022. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/229147.