Mongkolrat S. 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. J Nakornping Hosp [internet]. 2025 Jun. 26 [cited 2025 Dec. 8];16(2):222-41. available from: https://he01.tci-thaijo.org/index.php/jnkp/article/view/275688