[1] Univ Hosp Nancy, Dept Pulmonol, Nancy, France
[2] Univ Lorraine, Cardioresp Regulat & Motor Control, DevAH Dev Adaptat & Disadvantage, EA3450, Nancy, France
[3] Univ Hosp Ctr Osijek, Dept Pulmonol, Osijek, Croatia
[4] JJ Strossmayer Univ, Med Fac Osijek, Osijek, Croatia
[5] Med Univ Sofia, Sofia, Bulgaria
[6] Univ Hosp St George, Internal Consulting Dept, Allergy Unit, Plovdiv, Bulgaria
[7] Gazi Univ, Dept Chest Dis, Sch Med, Ankara, Turkey
[8] Babes Univ Med & Pharmacie, Timisoara, Romania
[9] Univ Genoa, Resp & Allergy Dept, Osped Policlin San Martino, Genoa, Italy