Author E. O\textquoterightDowd Ten Haaf J. Kaur S. Duffy W. Hamilton R. Hubbard J. Field M. Callister S. Janes H. de Koning J. Rawlinson D. Baldwin Year of Publication 2021 DOI 10.1136/thoraxjnl-2021-217142 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS