1. Department of Thoracic Oncology, Netherlands Cancer Institute, Amsterdam
2. Department of Radiation Oncology, Netherlands Cancer Institute, Amsterdam
3. Department of Radiation Oncology, Catharina Hospital, Eindhoven, the Netherlands
4. Department of Radiology, Netherlands Cancer Institute, Amsterdam
5. Department of Biometrics, Netherlands Cancer Institute, Amsterdam
6. Department of Pulmonology, Erasmus Medical Center, Rotterdam, Amsterdam, the Netherlands
7. Department of Pulmonology, VU Medical Center, Amsterdam, the Netherlands
8. Department of Pathology, Netherlands Cancer Institute, Amsterdam