1. Department of Dermatology, VU Medical Centre (VUMC), Amsterdam, The Netherlands.
2. Department of Plastic Surgery, University of Ghent, Ghent, Belgium.
3. Department of Pathology, VU Medical Centre (VUMC), Amsterdam, The Netherlands.
4. Department of Plastic Surgery, VU Medical Centre (VUMC), Amsterdam, The Netherlands.
5. Department of Oral Cell Biology, Academic Centre for Dentistry (ACTA), Amsterdam, The Netherlands.