Punyavirocha, Sorasit. 2026. “External Validation of a Prognostic Model for Predicting 24-Hour Mortality in Patients with Severe Septic Shock Presenting to the Emergency Department of Phra Nakhon Si Ayutthaya Hospital”. Journal of Preventive Medicine Association of Thailand 16 (1):64-83. https://he01.tci-thaijo.org/index.php/JPMAT/article/view/280731.