1. Ludwig Boltzmann Institute for Lung Health, Vienna, Austria;
2. Department of Respiratory and Pulmonary Diseases, Clinic Penzing, and
3. Faculty of Medicine, Sigmund Freud University, Vienna, Austria; and
4. Department of Respiratory and Pulmonary Diseases, Clinic Hietzing, Vienna Healthcare Group, Vienna, Austria;
5. NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands