Ratanamart, Vacharin, Vorapun Senanarong, Sudsabuy Chulakadabba, and Pipat Chiewvit. “SPECT as An Aid for Clinicians in the Diagnosis of Alzheimer’s Disease: A case report and review of current diagnostic approaches and the need for early accurate diagnosis to optimize treatment”. Siriraj Medical Journal 55, no. 1 (January 1, 2003): 31–41. accessed August 29, 2026. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245375.