Phoiampaisathit, Sukjai, Archawin Rotjanawiwat, Suthon Wongcheree, Suranga Saguanwongse, and Pajit Warachi. 1994. “Survey of the Antibodies to HTLV -1/2 Among Intravenous Drug Users in Thailand”. Journal of Health Science of Thailand 3 (1):48-53. https://thaidj.org/index.php/JHS/article/view/6652.