1. Discipline of Orthodontics and Paediatric Dentistry; Faculty of Dentistry; National University of Singapore; Singapore
2. Department of Periodontics and Oral Medicine; School of Dentistry; The University of Michigan; Ann Arbor MI USA
3. Division of Pediatric Dentistry; Faculty of Dentistry; The University of Toronto; Toronto ON Canada
4. Department of Orthodontics and Pediatric Dentistry; School of Dentistry; The University of Michigan; Ann Arbor MI USA
5. Department of Biostatistics; Yong Loo Lin School of Medicine; National University of Singapore; Singapore
6. Discipline of Oral Sciences; Faculty of Dentistry; National University of Singapore; Singapore