Affiliation: | 1. Department of Paediatrics, Division of Paediatric Oncology/Haematology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, Groningen;2. Department of Epidemiology, University Medical Center Groningen, University of Groningen, GRIAC Research Institute, Groningen;3. Department of Immunology/Haematology and BMT, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht;4. Department of Paediatric Pulmonology and Paediatric Allergology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, GRIAC Research Institute, Groningen;5. Department of Pulmonology, University Medical Center Groningen, University of Groningen, GRIAC Research Institute, Groningen, The Netherlands E‐mail: e.s.j.m.de.bont@umcg.nl |