Chaichob P, Pothard P, Khonwong S. Effectiveness of the screening model for patients with chronic obstructive pulmonary disease, Den Chai District, Phrae Province. J Phrae Dev [Internet]. 2024Jan.22 [cited 2024Jul.22];3(2):109-25. Available from: https://thaidj.org/index.php/jpphd/article/view/15021