1. Department of Pediatrics, Dr. von Hauner Children's Hospital, Ludwig Maximilians University German Center for Lung Research Munich Germany
2. Clinic for Pediatric Pneumology, Allergology, and Neonatology, Hannover Medical School German Center for Lung Research Hannover Germany
3. Department of Pediatric Pneumology and Allergy Medical University of Warsaw Warsaw Poland
4. Alder Hey Children's NHS Foundation Trust Liverpool UK
5. Hospital Clínico Universitario, Unidad Neumología Infantil Universidad de Valencia Valencia Spain
6. Neonatologie und Intensivmedizin Klinikum Oldenburg Oldenburg Germany
7. Altonaer Children's Hospital Hamburg Germany
8. University Children's Hospital Wuerzburg Wuerzburg Germany
9. Universities of Giessen and Marburg Lung Center, German Center of Lung Research Justus‐Liebig‐University Giessen Giessen Germany
10. Department of Pediatric Pulmonology Gazi University Faculty of Medicine Ankara Turkey
11. Department of Woman and Child Health University of Padova Padova Italy
12. Pediatric Pulmonology and Respiratory Intermediate Care Unit, Sleep and Long Term Ventilation Unit, Academic Department of Pediatrics (DPUO) Pediatric Hospital “Bambino Gesù” Research Institute Rome Italy