Jarungjitaree S, Chaipiyaporn N, Santiworakul A, Cetthakrikul S. Effect of Smoking on Physical Activity Level and Pulmonary Function of Vocational Students in Bangkok. SRIMEDJ [internet]. 2013 Oct. 31 [cited 2026 Sep. 16];25(4):287-91. available from: https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/12948