Mungnirandr, A. ., C. . Sathornkich, and . P. . Thepsuwan. “Necrotizing Enterocolitis: Review Literature”. Siriraj Medical Journal, vol. 59, no. 3, Mar. 2007, pp. 155-8, https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246082.