1. Department of Maxillofacial Surgery and Oral Pathology, Amsterdam University Medical Centers (Amsterdam UMC, Location VUmc) and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
2. Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
3. Department of Oral and Maxillofacial Surgery, Medical Center Leeuwarden, Leeuwarden, The Netherlands
4. Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
5. Department of Epidemiology and Biostatistics, Amsterdam University Medical Centers (Amsterdam UMC, Location VUmc), Amsterdam, The Netherlands