1. Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur
2. Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur
3. Sunway Institute for Healthcare Development, Sunway University, Bandar Sunway, Selangor Darul Ehsan
4. Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
5. AIDS Research Center, National Institute of Infectious Diseases, Tokyo, Japan
6. Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science
7. Department of Primary Care Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia