Wongkamchan, Wannisa, Pharkaporn Pharkmaruk, Maneerat Thongmak, Wiponrat Silaroj, Saichol Seangchan, and Onsiri Serirat. 2024. “Medical Expenses and Relative Weight for Diagnosis Related Groups of COVID-19 Patients Hospitalized in Rajavithi Hospital”. Journal of Health Science of Thailand 33 (Supplement 2):S336-S345. https://thaidj.org/index.php/JHS/article/view/15974.