1. Department of Biochemistry, Faculty of Dental Medicine, University of Medicine & Pharmacy ‘Carol Davila’, Blvd Eroii Sanitari no 8, Bucharest, Romania
2. Patlab, National Institute of Research for Electrochemistry & Condensed Mater, 202 Splaiul Independentei Blvd, Bucharest, Romania
3. Breath Research Institute, Leopold-Franzens University of Innsbruck, Rathausplatz 4, A-6850 Dornbirn, Austria.
4. Univ.-Clinic for Anesthesia, Innsbruck Medical University, Anichstrasse 35, A-6020 Innsbruck, Austria