Retraction Note: BMC Pulmonary Medicine (2021) 21:323
10.1186/s12890-021-01690-5
The Editor has retracted this article because, owing to an administration error in the editorial office, it was published after undergoing an initial editorial assessment, but before the peer review process had been undertaken. Post-publication peer review raised concerns that cannot be easily addressed by post-publication corrections as additional work is required. The authors have been invited to submit a new revised manuscript that will undergo robust peer review. The Publisher apologises to the authors for the administrative error.
Footnotes
The online version of the original article can be found at 10.1186/s12890-021-01690-5.
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