Affiliation: | a Breath Research Institute, Austrian Academy of Sciences, Rathausplatz 4, A-6850 Dornbirn, Austria b Vorarlberg University of Applied Sciences, Hochschulstr. 1, A-6850 Dornbirn, Austria c Institute of Nuclear Physics PAN, Radzikowskiego 152, PL-31342 Kraków, Poland d University of Vienna, Faculty of Mathematics, Nordbergstr. 15, A-1090 Wien, Austria e University of Applied Sciences Technikum Wien, Höchstädtplatz 5, A-1200 Wien, Austria f Innsbruck Medical University, Department of Psychiatry, Anichstr. 35, A-6020 Innsbruck, Austria g Innsbruck Medical University, Univ.-Clinic for Anesthesia, Anichstr. 35, A-6020 Innsbruck, Austria |