RT Journal Article SR Electronic T1 “A randomised controlled trial to investigate the use of high-frequency airway oscillations as training to improve dyspnoea in COPD”. Enya Daynes, Neil Greening, Salman Siddiqui and Sally Singh. ERJ Open Res 2019; 5: 00064-2019. JF ERJ Open Research JO erjor FD European Respiratory Society SP 00064-2019-AUT DO 10.1183/23120541.50064-2019 VO 5 IS 3 YR 2019 UL http://openres.ersjournals.com/content/5/3/00064-2019-AUT.abstract AB