Taotawin P. Reflection on COVID-19 Remedial Measures Based on Group-Targeting Principle: A Case Study of Slum and Rural Communities, Ubon Ratchathani Province. J Health Syst Res [internet]. 2023 Dec. 28 [cited 2025 Aug. 23];17(4):791-810. available from: https://he04.tci-thaijo.org/index.php/j_hsr/article/view/2528