1Department of Health Science and Biostatistics, School of Health Sciences, Swinburne University of Technology, Melbourne, VIC, Australia

2Centre for Community Health Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia

3School of Social Sciences, Universiti Sains Malaysia, Penang, Malaysia

4Asia-Europe Institute, Universiti Malaya, Kuala Lumpur, Malaysia

5Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia

Won Sun Chen, Department of Health Science and Biostatistics, School of Health Sciences, Swinburne University of Technology, John Street, Hawthorn, Melbourne, VIC 3122, Australia. Email: [email protected]