1. Târgu Jiu County Emergency Hospital , Allergology and Clinical Immunology Department , Târgu Jiu , Romania
2. Carol Davila” University of Medicine and Pharmacy , Bl. Eroii Sanitari, nr. 8, sector 5 , Bucharest , Romania
3. “Tudor Vladimirescu” Pneumology Hospital , Runcu, Gorj , Romania
4. Târgu Jiu County Emergency Hospital , Pneumology Department , Târgu Jiu , Romania
5. “Marius Nasta” Institute of Pneumology , Bucharest , Romania