1 Allergology and Immunology, Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health.
2 Division of Evidence-Based Medicine (dEBM), Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health.
3 Department of Dermatology and Venereology, Vivantes Klinikum Neukölln, Berlin.
4 Clinic and Functional Division for Rheumatology, University Hospital Düsseldorf.
5 Hamburg Center for Pediatric and Adolescent Rheumatology, Hamburg.
6 Department and Clinic of Dermatology, University Hospital Carl Gustav Carus, Dresden.
7 Center for Internal Medicine at the IIIrd Medical Department and Clinic, University Hospital Hamburg-Eppendorf.
8 Dermatology, Venereology and Allergology, Helios St. Elisabeth Klinik Oberhausen.
9 Department of Rheumatology and Clinical Immunology, Kerckhoff-Klinik GmbH, Bad Nauheim.
10 Department of Dermatology, Venereology and Allergology, University Hospital Frankfurt am Main.
11 Dermatological Department, University Hospital Erlangen.
12 Department of Pediatrics and Adolescent Medicine, University Hospital RWTH Aachen.
13 Dermatological Department, University Hospital Bonn.