Supplemental oxygen and dypsnoea in interstitial lung disease: absence of evidence is not evidence of absence
Emily C. Bell, Narelle S. Cox, Nicole Goh, Ian Glaspole, Glen P. Westall, Alice Watson, Anne E. Holland
European Respiratory Review Sep 2017, 26 (145) 170072; DOI: 10.1183/16000617.0072-2017