Moolasarn, Summana, Nattee Sirisuth, and Saksit Sripa. “Mortality Risks of Pneumonia Patients with Different Levels of Health Insurance Coverage in Thailand”. Siriraj Medical Journal 55, no. 2 (February 1, 2003): 100–106. accessed September 20, 2026. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245382.