1. Radboud University Medical Center, Nijmegen, The Netherlands
2. European Federation of Allergy and Airways Diseases Patients’ Associations (EFA) representative, Brussels, Belgium
3. Department of Pulmonary Function Test/Department of Pulmonary Circulation, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
4. Department of Pneumology and Intensive Care Medicine, University Hospital Aachen, Aachen University, Aachen, Germany