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4 Division of Pneumology, AZ Delta Roeselare, Roeselare, Belgium.
5 Division of Cardiovascular and Thoracic Surgery, CHU Liège, Liège, Belgium.
6 Division of Thoracic Oncology, UZ Antwerpen, Edegem, Belgium.
7 Department of Radiation Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium.
8 Division of Respiratory Oncology/Pneumology, University Hospitals Leuven, KU Leuven, Leuven, Belgium.
9 Cliniques Universitaires St-Luc, UCLouvain, Brussels, Belgium; Pole of Pneumology, ENT, and Dermatology (PNEU), Institut de Recherche Expérimentale et Clinique (IREC), UCLouvain, Brussels, Belgium.
10 Division of Pneumology, UZ Gent, Ghent, Belgium.
11 Belgian Cancer Registry (BCR), Brussels, Belgium.
12 Belgian Health Care Knowledge Centre (KCE), Brussels, Belgium.
13 Department of Pathology, University Hospitals Leuven, KU Leuven, Leuven, Belgium.
4 Division of Pneumology, AZ Delta Roeselare, Roeselare, Belgium.
5 Division of Cardiovascular and Thoracic Surgery, CHU Liège, Liège, Belgium.
6 Division of Thoracic Oncology, UZ Antwerpen, Edegem, Belgium.
7 Department of Radiation Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium.
8 Division of Respiratory Oncology/Pneumology, University Hospitals Leuven, KU Leuven, Leuven, Belgium.
9 Cliniques Universitaires St-Luc, UCLouvain, Brussels, Belgium; Pole of Pneumology, ENT, and Dermatology (PNEU), Institut de Recherche Expérimentale et Clinique (IREC), UCLouvain, Brussels, Belgium.
10 Division of Pneumology, UZ Gent, Ghent, Belgium.
11 Belgian Cancer Registry (BCR), Brussels, Belgium.
12 Belgian Health Care Knowledge Centre (KCE), Brussels, Belgium.
13 Department of Pathology, University Hospitals Leuven, KU Leuven, Leuven, Belgium.