1. Postdoctoral Research Station in Basic Medicine, Hebei Medical University, China, Centre for Gerontological Nursing, School of Nursing, The Hong Kong Polytechnic University, Kowloon, Hong Kong
2. Centre for Gerontological Nursing, School of Nursing, The Hong Kong Polytechnic University, Kowloon, Hong Kong
3. School of Nursing, Tung Wah College, Hong Kong, China
4. School of Nursing, The University of Hong Kong, Hong Kong
5. Good Clinical Practice Centre, The First Hospital of Shijiazhuang, China