1. Senior Consultant, Department of Orthodontics, Postgraduate Dental Education Center, Örebro, Sweden
2. Senior Consultant, Orthodontic Clinic, Public Dental Service, Gävleborg County Council and Centre for Research and Development, Uppsala University/Gävleborg County Council, Gävle, Sweden
3. Professor and Chair, Department of Orthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden