From the authors:
We are grateful to J. Nasiłowski and colleagues for having pointed out the important problem of the use of noninvasive ventilation (NIV) in Eastern European countries. Unfortunately, we were unaware of the survey conducted in Poland [1], mentioned by the authors, simply because it was not found using any medical search engine (i.e. Pubmed and similar).
We agree with J. Nasiłowski and colleagues that the use of NIV may be different in some geographical locations. However, as stated in the Methods section of our study: “The survey was sent to all members of the Respiratory Intensive Care Assembly from the …