1. Department of Surgery, C.H.U. Saint-Pierre (ULB), Brussels, Belgium.
2. Jules Bordet Institute, Tumours Centre of Free University of Brussels (ULB), Department of Pneumology, C.H.U. Saint-Pierre (ULB), Brussels, Belgium.
3. Department of Pathology, C.H.U. Saint-Pierre (ULB), Brussels, Belgium.
4. Department of Radiology, C.H.U. Saint-Pierre (ULB), Brussels, Belgium.
5. Department of Anaesthesiology, C.H.U. Saint-Pierre (ULB), Brussels, Belgium.