Wisetnan, C., P. Molee, P. Awikunprasert, K. Srichachet, and V. Pungkun. “A Survey of Radiation Released from Patients Treated With Radioiodine-131 Therapy”. Journal of Associated Medical Sciences, vol. 54, no. 2, Mar. 2021, pp. 17-21, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/247042.