Wongchampa, Piya, Arkom Chaiwongkot, and Rangsima Reantragoon. 2024. “Determination of initial HBsAg cutoff index threshold for reporting HBsAg reactivity”. Chulalongkorn Medical Journal 68 (2). Bangkok, Thailand. https://he05.tci-thaijo.org/index.php/CMJ/article/view/1475.