1. Department of Dermatology, Antwerp University Hospital, University of Antwerp, Edegem, Belgium;
2. Department of Dermatology, Cliniques Saint-Luc, Université Catholique de Louvain, Brussels, Belgium;
3. Department of Dermatology, Ghent University Hospital, Gent, Belgium;
4. AbbVie SA/NV, Wavre, Belgium