Jirapradittha, Junya, Pitsamai Kotchasan Inya, Pakaphan Kiatchoosakun, Patcharee Komvilaisak, and Sumitr Sutra. 2013. “Cost of Hospitalization for Premature Infants in Tertiary Care Hospital-Srinagarind Hospital”. Srinagarind Medical Journal 28 (4):193. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/14847.