Affiliation: | 1. Netherlands Institute for Health Services Research, Utrecht, The Netherlands;2. Sint Maartenskliniek, Nijmegen, Gelderland, The Netherlands;3. University Medical Center Utrecht, Utrecht, The Netherlands;4. Radboud University Nijmegen Medical Centre, Nijmegen, Gelderland, The Netherlands;5. University Medical Center Leiden, Leiden, The Netherlands;6. VU University Medical Center, Amsterdam, The Netherlands |