1. Department of Dermatology; Cliniques Universitaires Saint-Luc; 1200 Brussels Belgium
2. Department of Dermatology; University Hospital Antwerp and University of Antwerp; 2650 Antwerp Belgium
3. Department of Occupational and Environmental Dermatology; Lund University, Skåne University Hospital; 205 02 Malmö Sweden
4. Department of Endocrinology-Diabetology-Metabolism; University Hospital Antwerp (UZA) and University of Antwerp (UA); 2650 Antwerp Belgium
5. Department of Dermatology; University Hospitals, KU Leuven; 3000 Leuven Belgium
6. Department of Endocrinology; Cliniques Universitaires Saint-Luc; 1200 Brussels Belgium