1 Department of Community Health, Faculty of Medicine, UKM Medical Center, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia. azmawati@ppukm.ukm.edu.my.
2 Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia. azmawati@ppukm.ukm.edu.my.
3 Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia.
4 Department of Surgery, UKM Medical Center, UKM, Cheras, Malaysia.
5 Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia. rahmanj@ppukm.ukm.edu.my.