1 | Department of Thoracic Medicine, School of Medicine, University of Crete,
Heraklion, Greece |
2 | Department of Social Medicine, School
of Medicine, University of Crete, Heraklion, Greece |
3 | Agia Barbara Health Care Center, Heraklion, Crete, Greece |
4 | 3rd Department of Pulmonary Medicine, Chest Diseases Hospital "Sotiria", Athens, Greece. |
5 | Prefecture of Lasithi, Agios Nikolaos, Crete, Greece |