Sinsupan, N., C. Intarakhao, P. Kessomboon, K. Chata, and P. Jodking. “ 1991”. Srinagarind Medical Journal, vol. 7, no. 4, Nov. 2013, pp. 175-92, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13620.