1. Consultant in Maxillofacial Surgery, Department of Oral and Maxillofacial Surgery, Amphia Hospital, Breda, The Netherlands, and Senior Researcher, Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Leiden, The Netherlands.
2. Consultant in Maxillofacial Surgery, Department of Oral and Maxillofacial Surgery, Amphia Hospital, Breda, The Netherlands; Consultant in Maxillofacial Surgery, Department of Oral and Maxillofacial Surgery, Amsterdam Medical Centre, Amsterdam, The Netherlands; and Affiliate Professor, Department of Oral and Maxillofacial Surgery, University of Washington, Seattle, Wash.
3. Private practice, Tandheelkundig Centrum Dudok, Breda, The Netherlands.
4. Private practice, Orthodontiepraktijk Gooris, Breda, The Netherlands.
5. Professor, Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Leiden, The Netherlands.