Received: 15 March 2021
Accepted: 14 June 2021
First Online: 9 July 2021
: All methods were carried out in accordance with Good Clinical Practice, local laws, EU-Directive 2001/20, and the International Conference on Harmonization and the World Medical Association Declaration of Helsinki guidelines. Moreover, the experimental protocol was approved by the Institutional Review Board/ Ethics Committees of the participating Hospitals. Finally, an informed consent was obtained from all study participants.
: Not applicable.
: The Respiratory Medicine Department (Konstantinos Kostikas) and the Department of Informatics and Telecommunications (Konstantinos Kalafatakis and Ioannis Violaris) of the University of Ioannina have received funding from Menarini Hellas S.A. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.