1. Department of Respiratory Medicine; Severe Asthma Service; UCLH NHS Trust; London UK
2. Service de Pneumologie; Hôpital Bicêtre; Assistance Publique Hôpitaux de Paris; University Paris-Sud; Université Paris-Saclay; INSERM U999; Le Kremlin-Bicêtre France
3. Pulmonary Department; Mainz University Hospital; Mainz Germany
4. ProAR-Center of Excellence in Asthma; Federal University of Bahia School of Medicine; Salvador Brazil
5. Department of Pulmonary Medicine; Graduate School of Medical and Dental Sciences; Kagoshima University; Kagoshima Japan
6. F. Hoffmann-La Roche Ltd; Basel Switzerland
7. Section of Pulmonary and Critical Care Medicine; Baylor College of Medicine; Houston TX USA
8. Division of Respirology; Department of Medicine; McMaster University; Hamilton ON Canada