- Correspondence to Professor Stefano Nava, Department of Clinical, Integrated and Experimental Medicine (DIMES), Respiratory and Critical Care Unit, S. Orsola-Malpighi Hospital, Alma Mater Studiorum University of Bologna, Bologna 40126, Italy;
- Received March 3, 2020
- Revised May 26, 2020
- Accepted May 26, 2020
- First published August 5, 2020.
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