1. Comprehensive Pneumology Center, Research Unit Lung Repair and Regeneration, Helmholtz Center Munich, Ludwig Maximilians University Munich, University Hospital Grosshadern, 81377 Munich, Germany
2. University of Giessen Lung Center, 35392 Giessen, Germany
3. Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
4. Inserm U955, Equipe 4, 94000 Créteil, France
5. Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, 3000 Rotterdam, Netherlands