1. Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands.
2. Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands.
3. Department of Dermatology, VU University Medical Centre, Amsterdam, The Netherlands.
4. Department of Oral Biotechnology, University Medical Center Freiburg, Freiburg, Germany.