1. Center for Toxicology and Health Risk Studies, Faculty of Health Sciences, University Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
2. Product Stewardship and Toxicology, Petroliam Nasional Berhad, Level 13, Tower 1, PETRONAS Twin Towers, KLCC, 50088 Kuala Lumpur, Malaysia
3. X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia