Vanprapar, Nirun, Ruengpung Sutthent, Kulkanya Chokephaibulkit, Wanatpreeya Phongsamart, and Pimpanada Chearskul. 2005. “Modified Boosted - p24 Antigen Can Predict HIV-1 RNA Viral Load (Ampiclor HIV-1 Monitor)”. Siriraj Medical Journal 57 (6):173-76. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245593.