1. Department of Public Health and Primary Care; KU Leuven; Leuven Belgium
2. Department of Otorhinolaryngology and Head & Neck Surgery; University Medical Center Utrecht; Utrecht Netherlands
3. Brain Center; University Medical Center Utrecht; Utrecht Netherlands
4. Department of Primary- and Long-term Care; University of Groningen, University Medical Centre Groningen; Groningen Netherlands
5. Centre for Global Health Research; Kenya Medical Research Institute; Kisumu Kenya
6. Centre for Evidence-based Health Care, Department of Global Health, Faculty of Medicine and Health Sciences; Stellenbosch University; Cape Town South Africa
7. Cochrane Netherlands; Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University; Utrecht Netherlands
8. Medical Library; Amsterdam UMC, University of Amsterdam, Amsterdam Public Health; Amsterdam Netherlands
9. Test Evaluation Research Group, Institute of Applied Health Research; University of Birmingham; Birmingham UK
10. NIHR Birmingham Biomedical Research Centre; University Hospitals Birmingham NHS Foundation Trust and University of Birmingham; Birmingham UK
11. Department of Radiology, The Ottawa Hospital Research Institute; University of Ottawa; Ottawa Canada
12. Department of Clinical Epidemiology, Biostatistics and Bioinformatics; Amsterdam University Medical Centers, University of Amsterdam; Amsterdam Netherlands
13. Nuffield Department of Primary Care Health Sciences; University of Oxford; Oxford United Kingdom