Leetrakool, Nipapan, Praijitr Tanan, and Ladda Fongsatitkul. “HBV profile of the occult HBV infection in blood donors at Maharaj Nakorn Chiang Mai Hospital”. Journal of Associated Medical Sciences 46, no. 1 (January 1, 2013): 72. accessed April 13, 2025. https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/59999.