Cheenthra, Pim-on, Warangkana Chanaken, and Apichet Sirinawasatien. “Efficacy of Bowel Preparation in Patients Undergoing Colonoscopy by Providing Low-fiber Semi-finished Food at The Gastrointestinal Endoscopy Center Rajavithi Hospital”. Journal of The Department of Medical Services 51, no. 3 (September 15, 2026): 137–146. accessed September 18, 2026. https://he02.tci-thaijo.org/index.php/JDMS/article/view/276965.