1. Department of Dermatology Medical University of Graz Graz Austria
2. Department of Dermatology Kepler University Hospital Linz Austria
3. Department of Dermatology and Allergology University Hospital Bonn Bonn Germany
4. Center for Dermatology Allergology and Dermatosurgery Helios University Hospital Wuppertal University of Witten/Herdecke Wuppertal Germany
5. Department of Dermatology Venereology and Allergology Medical University of Innsbruck Innsbruck Austria
6. Department of Dermatology and Allergology University Hospital of the Paracelsus Medical University Salzburg Austria
7. Institute of Allergology Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Berlin Germany
8. Fraunhofer Institute for Translational Medicine and Pharmacology ITMP Allergology and Immunology Berlin Germany
9. Division of Oncology Department of Internal Medicine Medical University of Graz Graz Austria