1. Department of Pulmonology Franciscus Gasthuis & Vlietland Rotterdam The Netherlands
2. Department of Pulmonology NorthWest Clinics Alkmaar The Netherlands
3. Department of Pharmacokinetics, Toxicology and Targeting, Groningen Research Institute for Pharmacy University of Groningen Groningen The Netherlands
4. GRIAC Research Institute University Medical Centre Groningen, University of Groningen Groningen The Netherlands
5. Department of Pulmonology Leiden University Medical Centre Leiden The Netherlands
6. Department of Pulmonary Medicine University Hospital Essen—Ruhrlandklinik Essen Germany
7. Allergy and Clinical Immunology, Immunomodulation and Tolerance Group, Inflammation Repair and Development, Imperial College National Heart and Lung Institute London UK
8. Department of Pulmonary Disease Erasmus MC Rotterdam The Netherlands