Poko P, Changmai S, Tangwong S. Loneliness of elderly in the epidemic situation of Coronavirus Disease 2019. TJN [internet]. 2025 Apr. 29 [cited 2026 Oct. 11];74(2):51-60. available from: https://he02.tci-thaijo.org/index.php/TJN/article/view/273003