1 Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany.
2 Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany.
3 Center for Evidence-Based Healthcare, University Hospital Carl Gustav Carus and Carl Gustav Carus Faculty of Medicine, Technische Universitaet Dresden, Dresden, Germany.
4 Department of Dermatology, University Allergy Center, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany.
5 Practice Dr. Med. Thomas Schaefer/Dr. Med. Doreen Belz, Derma Koeln, Köln, Germany.
6 Institute for Health Services Research in Dermatology Hamburg, University Medical Center Hamburg Eppendorf, Hamburg, Germany.
7 Center for Inflammatory Skin Diseases, Department of Dermatology and Allergy, University Hospital Schleswig-Holstein, Kiel, Germany.
8 Department of Dermatology, Venereology and Allergology, Clinical Research, University Hospital Frankfurt am Main, Frankfurt am Main, Germany.
9 Department of Dermatology, Ruprecht-Karls University Heidelberg, Heidelberg, Germany.
10 Department of Dermatology and Allergy, Ludwig Maximilian University, Munich, Germany.
11 Department of Dermatology and Allergy, University Hospital Augsburg, Augsburg, Germany.
12 Comprehensive Center for Inflammation Medicine, University of Luebeck, Luebeck, Germany.
13 Practice Dr. Med. Konstantin Ertner, Nuernberg, Germany.
14 Practice 'Die Hautärzte' Braunschweig, Braunschweig, Germany.
15 Practice Dr. Med. Anne Bong, Emmerich, Germany.
16 Dermatology Clinic, Helix Medical Excellence Center Mainz, Mainz, Germany.
17 Practice Dermasana Karlsruhe, Karlsruhe, Germany.
18 Dermatology Center Hannover, Hannover, Germany.
19 Department of Dermatology, University, German Center for Immunotherapy, Erlangen, Germany.
20 Department of Dermatology Venereology and Allergology, University Hospital - Medical School OWL - University of Bielefeld, Bielefeld, Germany.
21 Practice Dr. Med. Beate Schwarz, Langenau, Germany.
22 Practice Dr. Med. Christiane Handrick, Berlin, Germany.
23 Practice Dr. Med. Andrea Asmussen, Dermatology at Lesum, Bremen, Germany.