1. Department of Respiratory Medicine, Amsterdam University Medical Centres University of Amsterdam The Netherlands
2. Clinical Epidemiology Program Ottawa Hospital Research Institute Ottawa Canada
3. Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam University Medical Centres University of Amsterdam Amsterdam the Netherlands
4. Department of General Pediatrics and Pediatric Infectious Diseases, Necker‐Enfants Malades Hospital, Assistance Publique‐Hôpitaux de Paris Paris France
5. Inserm UMR 1153 (Centre of Research in Epidemiology and Statistics) Paris Descartes University France
6. Department of Radiology University of Ottawa Ottawa Canada
7. Cochrane Netherlands, Julius Center for Health Sciences and Primary Care, University Medical Centre Utrecht Utrecht University The Netherlands
8. Medical Library, Amsterdam University Medical Centers University of Amsterdam Amsterdam the Netherlands