1 Department for Oto-Rhino-Laryngology, Head and Neck Surgery; Medical University of Vienna, Vienna, Austria.
2 Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology; Medical University of Vienna, Vienna, Austria.
3 Allergy Therapeutics, Worthing, UK.
4 Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany.
5 Institute for Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
6 Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Germany.
7 Mycology & Aerobiology Service of Sciensano, Brussels, Belgium.
8 National Public Health Center, Budapest, Hungary.
9 Depatment of Immunology and Allergy Medical University of Lodz, Lodz, Poland.
10 Ministry of Environmental Protection, Environmental Protection Agency, Belgrade, Serbia.
11 Paediatric Department, Allergy Unit, Masaryk University and University Hospital Brno, Brno, Czech Republic.
12 Andrija Stampar Teaching Institute of Public Health, Zagreb, Croatia.
13 German Pollen Information Service Foundation, Berlin, Germany.