1. Department of Dermatopathology, Unilab Lg, University Hospital of Liège, 4000 Liège, Belgium
2. Department of Dermatology, Diagnostic Centre, 4800 Verviers, Belgium
3. Department of Dermatology, Regional Hospital Citadelle, 4000 Liège, Belgium
4. Laboratory of Skin Bioengineering and Imaging, Department of Clinical Sciences, B23, University of Liège, 4000 Liège, Belgium