Punyachindtawatt S, Koomsiri P. Prevalence and Factors Associated with inpatient and outpatient of Chronic Obstructive Pulmonary Disease (COPD) at Klaeng hospital, Rayong province. JPMAT [internet]. 2021 Sep. 8 [cited 2026 Aug. 27];11(2):407-1. available from: https://he01.tci-thaijo.org/index.php/JPMAT/article/view/249124