[1] Jalan Yaacob Latiff,United Nations University
[2] Social Security Organization, International Institute for Global Health, Universiti Kebangsaan Malaysia Medical Centre
[3] Jalan Yaacob Latiff,Department of Health Information, Universiti Kebangsaan Malaysia Medical Centre
[4] Jalan Raja Muda Abdul Aziz,Faculty of Health Sciences, Universiti Kebangsaan Malaysia