1. Department of Respiratory Diseases; University Hospitals Leuven; Leuven Belgium
2. Department of Hematology; University Hospitals Leuven; Leuven Belgium
3. Department of Histopathology; KU Leuven; Leuven Belgium
4. Department of Clinical and Experimental Medicine; Division of Respiratory Diseases; KULeuven; Leuven Belgium
5. Department of Experimental Thoracic Surgery; KU Leuven; Leuven Belgium