[1] Univ Tunku Abdul Rahman, Fac Med & Hlth Sci, Dept Preclin Sci, Kajang, Malaysia
[2] Univ Tunku Abdul Rahman, Ctr Res Communicable Dis, Kajang, Malaysia
[3] Nanyang Technol Univ, Ctr Populat Hlth Sci, Lee Kong Chian Sch Med, Singapore, Singapore
[4] Univ Malaya, Fac Med, Dept Social & Prevent Med, Kuala Lumpur, Malaysia
[5] Univ Kebangsaan Malaysia, Fac Hlth Sci, Ctr Community Hlth Studies ReaCH, Kuala Lumpur, Malaysia
[6] Sunway Univ, Sunway Univ Business Sch SUBS, Dept Mkt Strategy & Innovat, Bandar Sunway, Selangor, Malaysia
[7] Univ Putra Malaysia, Fac Med & Hlth Sci, Dept Family Med, Kajang, Malaysia
[8] Univ Putra Malaysia, Malaysian Res Inst Ageing, Serdang, Malaysia
[9] Sunway Univ, Sch Med & Life Sci, Dept Med Sci, Bandar Sunway 47500, Selangor, Malaysia