1 Department of Dermatology and Venereology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany.
2 Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany.
3 Department of Dermatology, University of Lübeck, Lübeck, Germany.
4 Department of Dermatology, University Medical Center Mainz, Mainz, Germany.
5 Department of Dermatology, Venereology and Allergology, University Hospital, Goethe-University, Frankfurt, Germany.
6 Department of Dermatology, Heidelberg University Hospital, Heidelberg, Germany.
7 Department of Dermatology and Allergology, University Medical Center Gießen (UKGM), Justus Liebig University, Giessen, Germany and Allergy Research Group, Department of Dermatology, Medical Center - University of Freiburg, Freiburg, Germany.
8 Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin, Berlin.
9 Department of Dermatology, University Hospital Erlangen, Erlangen, Germany.
10 Department of Dermatology, University Hospital Münster, Münster, Germany.
11 Department of Dermatology, University Hospital of Regensburg, Regensburg, Germany.
12 Hautzentrum Regensburg, Regensburg, Germany.
13 Department of Dermatology and Allergology, Carl Gustav Carus University Hospital, Dresden, Germany.
14 Chair and Institute of Environmental Medicine, UNIKA-T, Technical University of Munich and Helmholtz Zentrum München, Augsburg, Germany.
15 Department of Dermatology, Venerology and Allergology, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany.
16 Division of Allergy, Department of Dermatology, and Department of Biomedicine, University of Basel, Basel, Switzerland.
17 Department of Dermatology, Venerology and Allergology, University Hospital of Würzburg, Würzburg, Germany.
18 Department of Dermatology and Allergy, University Hospital Bonn, Bonn, Germany.
19 Department of Dermatology and Allergology, Technical University of Munich, Munich, Germany.
20 Department of Dermatology, University of Tuebingen, Tuebingen, Germany.
21 Department of Dermatology, University Hospital Dusseldorf, Dusseldorf, Germany.
22 Department of Dermatology and Allergology, University Medical Center Marburg (UKGM), Marburg, Germany.
23 Department of Dermatology, Venereology and Allergology, Federal Army Hospital, Hamburg, Germany.