University of Amsterdam - University Medical Center, Leiden University - Department of Pulmonology, University of Amsterdam - University Medical Center, Erasmus University Rotterdam (EUR) - Erasmus Medical Center (MC), University of Amsterdam - University Medical Center, University of Amsterdam - University Medical Center, Erasmus University Rotterdam (EUR) - Erasmus Medical Center (MC), University of Amsterdam - University Medical Center, Canisius Wilhelmina Hospital, Leiden University - Leiden University Medical Center (LUMC), Amphia Hospital, University of Amsterdam - University Medical Center, Leiden University - Leiden University Medical Center (LUMC), Leiden University - Leiden University Medical Center (LUMC), University of Amsterdam - University Medical Center, University of Amsterdam - University Medical Center, University of Amsterdam - University Medical Center, Leiden University - Leiden University Medical Center (LUMC), Erasmus University Rotterdam (EUR) - Erasmus Medical Center (MC), Morgagni-Pierantoni Hospital, Eberhard Karls University, University of Amsterdam - Department of Clinical Epidemiology, Biostatistics and Bioinformation, University of Amsterdam - University Medical Center, University of Amsterdam - University Medical Center and University of Amsterdam - University Medical Center