1. 3rd Department of Surgery, ``ahepa`` University Hospital, Aristotle University of Thessaloniki, Medical School, Thessaloniki, Greece
2. Pulmonary Oncology Department, ``Bioclinic`` Private Hospital, Thessaloniki, Greece
3. Oncology Department, General Hospital of Rhodes, Rhodes, Greece
4. Sana Clinic Group Franken, Department of Cardiology/Pulmonology/Intensive Care/Nephrology, “Hof” Clinics, University of Erlangen, Hof, Germany
5. Thoracic Oncology Department, ``Interbalkan`` European Medical Center, Thessaloniki, Greece
6. Oncology Department, ``Interbalkan`` European Medical Center, Thessaloniki, Greece
7. Oncology Department, ``Bioclinic`` Private Hospital, Thessaloniki, Greece
8. Nuclear Medicine Department, ``Bioiatriki`` Private PET-CT Laboratory, Thessaloniki, Greece
9. Faculty of Medicine, University of Novi Sad, Institute for Pulmonary Diseases of Vojvodina, Novi Sad, Serbia
10. Radiology Department, Democritus University of Thrace, General Hospital of Alexandroupolis, Alexandroupolis, Greece
11. Surgery Department, ``General Clinic`` Euromedica, Thessaloniki, Greece
12. Department of Respiratory & Critical Care Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, China