Wongwajana, Suwin, Surasakdi Wongratanacheewin, Kunyaluk Chaicumpar, and Piroon Mootsikapun. “Enumeration of CD4, CD8 Lymphocyte and CD4/CD8 Ratio in HIV Infected Patients by Direct Immunofluorescence”. Srinagarind Medical Journal 7, no. 3 (November 18, 2013): 106–114. Accessed June 26, 2022. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13610.