Thongtaeng, Pulawit, and Junjira Seesawang. “Existing Situations of Long COVID in Older Adults With Chronic Illness:: A Mixed Method Study”. Nursing Science Journal of Thailand 42, no. 2 (March 28, 2024): 1–18. Accessed May 13, 2024. https://he02.tci-thaijo.org/index.php/ns/article/view/266333.