1. Department of Dermatology Contact Allergy Unit University Hospital Antwerp (UZA) University of Antwerp (UA) Antwerp Belgium
2. Department of Dermatology Hôpital Saint‐André‐CHU Bordeaux Bordeaux France
3. Department of Dermatology Allergology Unit Hôpital Saint Eloi‐ CHU Montpellier Montpellier France
4. Department of Dermatology Centre Hospitalier Henri Mondor Aurillac France
5. Department of Dermatology Hôpital Edouard Herriot Hospices civils de Lyon LyonFrance
6. Department of Dermatology Hôpital Larrey University of Toulouse Toulouse France