Mongkolrat, S. . (2025). Comparative effectiveness of pressurized metered-dose inhaler (pMDI) and dry-powdered inhaler (DPI) salmeterol/fluticasone on chronic obstructive pulmonary disease, a single-center study in Hangdong Hospital. Journal of Nakornping Hospital, 16(2), 222–241. retrieved from https://he01.tci-thaijo.org/index.php/jnkp/article/view/275688