1. Department of Clinical Immunology; Wroclaw Medical University; Wroclaw Poland
2. 2nd Pediatric Clinic, Allergy Department; University of Athens; Athens Greece
3. Center for Allergy Research; Karolinska Institutet; Stockholmm Sweden
4. Department of Respiratory Diseases; Aarhus University Hospital; Aarhus Denmark
5. Department of Pathophysiology; Medical University of Vienna; Vienna Austria
6. Department of Orothinolaryngology; University Hospitals Leuven; Leuven Belgium
7. Department of Pulmonology; St. Franciscus Gasthuis; Rotterdam The Netherlands
8. Department of Pediatrics; Referral Centre for Food Allergy; Padua General University Hospital; Padua Italy
9. Department of Dermatology; University of Zurich; Zurich Switzerland
10. Department of Dermatology and Allergy; Charité - Universitätsmedizin Berlin; Berlin Germany
11. Department of Allergy and Clinical Immunology; SC Theramed SRL; Brasov Romania