Dhamaraks, S. “Pragmatic Treatment Patterns and Clinical Outcomes of Outpatients with Residual Respiratory Symptoms from COVID-19 Infection at Chao Phya Abhaibhubejhr Hospital : A retrospective study”. Journal of Preventive Medicine Association of Thailand, vol. 13, no. 2, Aug. 2023, pp. 1-14, https://he01.tci-thaijo.org/index.php/JPMAT/article/view/263367.