1. University of Groningen, University Medical Center Groningen, Center for Medical Imaging—North East Netherlands, Groningen, Netherlands
2. Department of Pulmonology, Medisch Spectrum Twente, Enschede, Netherlands
3. Department of Radiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
4. Department of Public Health, Erasmus University Rotterdam, University Medical Center Rotterdam, Rotterdam, Netherlands