Phuengtrakul, Tiraya, Phuanjai Rattakorn, and Peesit leelasawatsuk. 2020. “The Validity and Reliability of the Thai Version of M.D. Anderson Dysphagia Inventory and Correlation Between Quality of Life and Dysphagia Severity in Patients With Head and Neck Cancer”. Journal of Associated Medical Sciences 54 (1):47-57. https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/244422.