[1] Gazi Univ, Fac Med, Dept Pediat Allergy & Asthma, TR-06500 Ankara, Turkey
[2] Fatih Univ, Fac Med, Dept Pediat Allergy & Asthma, Ankara, Turkey
[3] Gazi Univ, Fac Med, Dept Pediat Emergency, TR-06500 Ankara, Turkey
[4] Ankara Diskapi Childrens Dis Training & Res Hosp, Minist Hlth, Dept Pediat Allergy & Asthma, Ankara, Turkey
[5] Ankara Kecioren Training & Res Hosp, Minist Hlth, Dept Pediat Allergy & Asthma, Ankara, Turkey
[6] Ankara Univ, Fac Med, Dept Biostat & Med Informat, TR-06100 Ankara, Turkey