1. Department of Orthodontics; National Dental Centre Singapore; Singapore Singapore
2. Department of Dentistry; Ng Teng Fong General Hospital; Singapore Singapore
3. Faculty of Dentistry; National University of Singapore; Singapore Singapore
4. Faculty of Dentistry; University of Malaya; Kuala Lumpur Malaysia
5. Faculty of Dentistry; Universitas Indonesia; Jakarta Indonesia
6. Faculty of Dentistry; Peking University School of Stomatology; Beijing China. Faculty of Dentistry; University of Hong Kong; Hong Kong SAR China
7. Division of Temporomandibular Disorders and Orofacial Pain; Department of Oral Health & Medicine; School of Dental Medicine; University Center of Dental Medicine; Basel Switzerland