1. Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abd Aziz, 50300 Kuala Lumpur, Malaysia
2. Department of Basic Medical Science, Kulliyyah of Nursing, International Islamic University Malaysia, Level 2, Jalan Hospital Campus, P.O. Box 141, Pahang Darul Makmur, 25710 Kuantan, Malaysia