1. Department of Paediatric Emergency Medicine, Division of Medicine, St. Mary’s Hospital – Imperial College NHS Healthcare Trust
2. Section of Paediatric Infectious Diseases, Department of Infectious Diseases, Faculty of Medicine, Imperial College London
3. Centre for Paediatrics and Child Health, Faculty of Medicine, Imperial College, London, UK
4. Department of Emergency Medicine, Hubertus Hospital, Berlin, Germany
5. Department of Paediatric Emergency Medicine, Heim Pal National Paediatric Institute, Budapest, Hungary
6. Department of Emergency Medicine, Division of Medicine, St. Mary’s Hospital – Imperial College NHS Healthcare Trust, London, UK