1. School of Nursing, The University of Hong Kong, 4/F, William M.W. Mong Block, 21 Sassoon Road, Pokfulam, Hong Kong
2. School of Nursing, Western Sydney University, 7 David Pilgrim Ave, Campbelltown NSW 2560 Australia
3. School of Gerontology Health Management, Taipei Medical University, No. 250, Wuxing Street, Xinyi District, Taipei, Taiwan
4. School of Nursing, University of Wollongong, Northfields Ave, Wollongong, 2522, Australia
5. Illawarra Health and Medical Research Institute (IHMRI), University of Wollongong, Northfields Ave, Wollongong, 2522, Australia