Opasrattanakorn, S., and O. Sukavulli. “Type, and amount of comorbildity and multimorbidity among different aged group patients with transient ischemic attack, and between older adults versus adult”. Thai Journal of Cardio-Thoracic Nursing, vol. 31, no. 2, Feb. 2021, pp. 79-95, https://he02.tci-thaijo.org/index.php/journalthaicvtnurse/article/view/240928.