1 | 2nd Pneumonology Department, “Attikon” University Hospital, School of Medicine, National and Kapodistrian University of Athens, Greece |
2 | 1st Pneumonology Department, “Sotiria” Chest Diseases Hospital, School of Medicine, National and Kapodistrian University of Athens, Greece |
3 | 7th Pneumonology Department, “Sotiria” Chest Diseases Hospital, Athens, Greece |
4 | 6th Pneumonology Department, “Sotiria” Chest Diseases Hospital, Athens, Greece |