1. Department of Nursing Science, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria
2. Faculty of Health Studies, University of Pardubice, Studentska 95, 532 10 Pardubice, Czech Republic
3. Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Universiteitssingel 50, 6202 AZ Maastricht, The Netherlands
4. Department Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Millet Str., Çapa, Fatih, 34093 Istanbul, Turkey