1. Dermatology Ghent University Hospital Ghent Belgium
2. Head & Skin Ghent University Ghent Belgium
3. Dermatology Centre Hospitalier Universitaire de Liège Liège Belgium
4. Dermatology Cliniques Saint‐Luc Université Catholique de Louvain Brussels Belgium
5. Dermatology University Hospital Leuven Leuven Belgium
6. Dermatology University Hospital of Antwerp Antwerp Belgium
7. Private Practice Tremelo Belgium
8. Dermatology Erasme Hospital Université Libre de Bruxelles Brussels Belgium