1. Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Allergology, Berlin, Germany
2. Department of Biomedical Sciences, Humanitas University, Milan, Italy
3. Department of Personalized Medicine Asthma & Allergy, Personalized Medicine Asthma & Allergy IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
4. Division of Internal Medicine, Asthma and Allergy, Medical University of Lodz, Lodz, Poland
5. Allergology and Immunology, Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Berlin, Germany
6. IMSB, Medical Faculty, University at Cologne, and ClinCompetence Cologne GmbH, Cologne, Germany
7. Pediatric Department, University of Szeged, Szeged, Hungary
8. Allergy Dpt, 2nd Pediatric Clinic, University of Athens, Athens, Greece
9. Hospital Universitario Infantil Niño Jesus, Allergy Department. Madrid, Spain