Katchamart, Wanrachada, and Ajchara Koolvisoot. 2004. “Cognitive Dysfunction in Systemic Lupus Erythematosus Patients at Siriraj Hospital”. Siriraj Medical Journal 56 (9):485-92. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245550.