สฤกพฤกษ์ เ. (2023) “Factor predicted symptomatic COVID-19 infection and COVID-19 pneumonia in Thungsong Hospital, Nakhon Si Thammarat Province”, Journal of Health Science of Thailand, 32(6), pp. 1056–1065. Available at: https://thaidj.org/index.php/JHS/article/view/14905 (Accessed: 22July2024).