1. Department of Biomedical Sciences, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
2. Department of Biomedical Sciences, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia,
3. Institute for the Studies of Natural Remedies, Universiti Teknologi MARA, Puncak Alam, Malaysia
4. Department of Chemistry, Universit Malaya, Kuala Lumpur, Malaysia
5. Environmental Health Program, Faculty of Allied Health Sciences & UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia