1. Department of Nursing Science, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
2. Malaysian Research Institute on Ageing (MyAgeing™), Universiti Putra Malaysia, Serdang, Malaysia
3. Department of Human Development and Family Studies, Faculty of Human Ecology, Universiti Putra Malaysia, Serdang, Malaysia
4. Centre for Nurisng Studies, Universiti Teknologi MARA (UiTM), Shah Alam, Malaysia