Porprasit N, Jirapongsuwan A, Kalampakorn S, Siri S. Factors associated with quality of spirometry at occupational medicine clinic in Nopparat Rajathanee Hospital. J Med Health Sci [Internet]. 2020 Dec. 30 [cited 2024 May 7];27(3):69-82. Available from: https://he01.tci-thaijo.org/index.php/jmhs/article/view/246817