1. Orthodontics, Dental School, Department of Medical and Surgical Specialties Radiological Sciences and Public Health, University of Brescia Brescia Italy
2. Orthodontics, Division of Paediatric Dentistry & Orthodontics Faculty of Dentistry, The University of Hong Kong Pokfulam Hong Kong
3. Oral and Maxillofacial Radiology, Division of Applied Oral Sciences and Community Dental Care Faculty of Dentistry, The University of Hong Kong Pokfulam Hong Kong
4. Forensic Science, School of Medical and Health Sciences Tung Wah College Ho Man Tin Hong Kong
5. Department of Anthropology The Pennsylvania State University State College Pennsylvania USA
6. Dental Materials Science, Division of Applied Oral Sciences and Community Dental Care Faculty of Dentistry, The University of Hong Kong Pokfulam Hong Kong
7. Department of Oral Health & Medicine University Center for Dental Medicine Basel UZB, University of Basel Basel Switzerland