1. Department of Paediatrics Royal Brompton and Harefield NHS Foundation Trust London United Kingdom
2. Department of Radiology Royal Brompton and Harefield NHS Foundation Trust London United Kingdom
3. National Heart and Lung Institute, Imperial College London London United Kingdom
4. Department of Paediatric Oncology Great Ormond Street Hospital London United Kingdom
5. Department of Histopathology Royal Brompton and Harefield NHS Foundation Trust London United Kingdom
6. Translational and Clinical Research Institute Newcastle University Newcastle upon Tyne United Kingdom
7. Department of Paediatric Respiratory Medicine and Sleep Medicine Royal Hospital for Children Glasgow United Kingdom