Chomchai, C., W. Thanongsakakul, and W. Thanyong. “Theophylline Overdose in Premature Neonate: A Case Report and Review of Pharmacokinetics”. Siriraj Medical Journal, vol. 58, no. 9, Sept. 2006, pp. 1013-5, https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245929.