Faculty of Medicine and Health Sciences;
University Putra Malaysia;
Selangor 43400;
Malaysia;
International Institute for Global Health;
United Nations University;
UKM Medical Centre;
Jalan Yaacob Latiff;
Kuala Lumpur56000;
Malaysia;
Department of Community Health;
Faculty of Medicine;
Universiti Kebangsaan Malaysia;
Jalan Yaacob Latiff;
Kuala Lumpur56000;
Malaysia;