1. Department of Orthodontic, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
2. School of Biosciences and Biotechnology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
3. Centre for Graduate Studies, Research Resources Centre, Cyberjaya University College of Medical Sciences, Cyberjaya, Selangor, Malaysia
4. School of Biology, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia