1. AstraZeneca Gaithersburg Maryland USA
2. Eastern Virginia Medical School Norfolk Virginia USA
3. Guy's and St. Thomas' NHS Trust London UK
4. AstraZeneca Gothenburg Sweden
5. Department of Medical Affairs Vertex Pharmaceuticals Boston Massachusetts USA
6. Department of Otorhinolaryngology University Hospital Düsseldorf Düsseldorf Germany
7. University Hospital of Münster Münster Germany
8. First Affiliated Hospital Sun Yat‐sen University Guangzhou China
9. Upper Airways Research Laboratory Ghent University Ghent Belgium