Sawangsrisutikul K, Chuxnum T, Promduangsi P, Saritapirak N, Suphanchaimat R. Risk Factors of COVID-19 Infection and the Effectiveness of Pre-flight Screening from an Investigation of an International Flight to Thailand, 2020. OSIR [internet]. 2023 Mar. 31 [cited 2025 Dec. 9];16(1):31-9. available from: https://he02.tci-thaijo.org/index.php/OSIR/article/view/262039