[1] Univ Malaya, Ctr Excellence Res AIDS CERIA, Kuala Lumpur, Malaysia
[2] Harvard Univ, Dept Hist Sci, Cambridge, MA 02138 USA
[3] Univ Teknol MARA, Fac Med, Sungai Buloh Campus, Sungai Buloh, Malaysia
[4] Univ Malaya, Med, Med Ctr, Kuala Lumpur, Malaysia