1. Pulmonary Department, General Clinic Euromedica, Thessaloniki 54646, Greece
2. Oncology Department, University General Hospital of Larissa, Larissa 41800, Greece
3. Oncology Department, General Hospital of Volos, volos 31800, Greece
4. Oncology Department, General Hospital of Kavala, kavala 65404, Greece
5. Oncology Department, General Hospital of Rhodes, Rhodes 71800, Greece
6. Health Center of Evosmos, Thessaloniki 53446, Greece
7. Sozialstiftung Bamberg - Klinikum am Bruderwald aff.University of Erlangen, Erlangen 91500, Germany
8. Department of Respiratory & Critical Care Medicine, Changhai Hospital, Navy Military Medical University, Shanghai 200433, China
9. Surgery Department, Democritus University of Thrace, Alexandroupolis 68100, Greece
10. Department of Pathology, University of Cyprus, 678990, Cyprus
11. 3rd University Surgery Department, “AHEPA” University Hospital, Thessaloniki 54663, Greece
12. Department of Pulmonology, I.M. Sechenov First Moscow State Medical University, Moscow 678554, Russian Federation