Wajajamroen, Somphong. 2013. “Outcomes of Omeprazole in the Treatment of Laryngopharyngeal Reflux between the Overweight/Obese Patients and the Normal Weight Patients”. Research Medical Journal 36 (1):38-44. https://he02.tci-thaijo.org/index.php/ramajournal/article/view/102038.