Anusak K, Matanasarawoot R, Sakarinkhul P, Jiraporncharoen W. Factors Affecting an Acute Exacerbation among COPD Patients in the Emergency Room, Lamphun Hospital. J DMS [Internet]. 2022 Jan. 21 [cited 2024 Apr. 27];46(4):67-73. Available from: https://he02.tci-thaijo.org/index.php/JDMS/article/view/251477