Göktalay, T2024-07-182024-07-180269-21551477-0873http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/4285EnglishOBSTRUCTIVE PULMONARY-DISEASEHigh-frequency chest wall oscillation in infective exacerbation of COPD: Is airway secretion clearance the cornerstone? ResponseLetter