1. National Orthopaedic Centre of Excellence for Research and Learning, Department of Orthopaedic Surgery, University of Malaya, Kuala Lumpur
2. Institute of Mathematical Sciences, University of Malaya, Kuala Lumpur
3. Department of Statistics, University of Rajshahi, Rajshahi
4. Sections of Orthodontics and Oral Biology, School of Dentistry, University of California, Los Angeles