Tanalapanon, W., P. Pramyothin, I. Nuchprayoon, and S. Hongeng. “Genetic Polymorphism and Thiopurine Methyltransferaseactivity in Acute Lymphoblastic Leukemia Children”. Journal of Basic and Applied Pharmacology, vol. 26, no. 1, July 2015, p. 61, https://li01.tci-thaijo.org/index.php/JBAP/article/view/36470.