1. Department of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
2. Faculty of Business and Management, Universiti Sultan Zainal Abidin, Terengganu 21300, Malaysia
3. School of Nursing and Midwifery, La Trobe University, Bundoora, VIC 3086, Australia
4. Department of Nursing, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia