1. Discipline of Oral and Maxillofacial Surgery; Faculty of Dentistry; The University of Hong Kong; Hong Kong China
2. Discipline of Oral Rehabilitation; Faculty of Dentistry; The University of Hong Kong; Hong Kong China
3. Discipline of Oral Diagnosis and Polyclinics; Faculty of Dentistry; The University of Hong Kong; Hong Kong China
4. Division of Craniomaxillofacial and Oral Surgery; University Hospital; University of Zurich; Zurich Switzerland
5. Center for Applied Biotechnology and Molecular Medicine; University of Zurich; Zurich Switzerland
6. The University of Hong Kong; Prince Philip Dental Hospital; Hong Kong China
7. University of Zurich; Zurich Switzerland