[1] Univ Kebangsaan Malaysia, Fac Med, Dept Biochem, Bandar Tun Razak 56000, Kuala Lumpur, Malaysia
[2] Univ Teknol MARA, Fac Med, Dept Pharmacol, Sg Buloh 47000, Malaysia
[3] Univ Putra Malaysia, Fac Med & Hlth Sci, Dept Human Anat, Serdang 43400, Malaysia
[4] Univ Kebangsaan Malaysia, Fac Med, Dept Pharmacol, Bandar Tun Razak 56000, Kuala Lumpur, Malaysia