1. Department of Radiology, University of Ottawa, Ottawa Hospital Civic Campus, 1053 Carling Ave, Rm c159, Ottawa, ON K1Y 4E9, Canada
2. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
3. Department of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
4. Department of Clinical Epidemiology, Biostatistics, and Bioinformatics, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands