Khampan, S., S. Choosakul, T. Pairoh, and K. Sawatwong. “Fort Pichaidaphak Hospital (FPCDH) COVID-19 System: The COVID-19 Screening and Monitoring Tools for Patients and Active Case Finding”. Greater Mekong Subregion Medical Journal, vol. 2, no. 2, May 2022, pp. 123-8, https://he02.tci-thaijo.org/index.php/gmsmj/article/view/257674.