Choomsri, P., W. Bumpenboon, Y. Wasuthit, C. Euanorasetr, P. Sumritpradit, W. Suwanthunma, and P. Lertsithichai. “Upper Gastrointestinal Endoscopy Findings in Patients Presenting With Dyspepsia”. The Thai Journal of Surgery, vol. 31, no. 1, Mar. 2010, https://he02.tci-thaijo.org/index.php/ThaiJSurg/article/view/227825.