1. Centre for Gerontological Nursing, School of Nursing The Hong Kong Polytechnic University (PolyU) Hong Kong Hong Kong
2. School of Nursing The Hong Kong Polytechnic University (PolyU) Hong Kong Hong Kong
3. POH Jockey Club Care & Attention Home Pok Oi Hospital Hong Kong Hong Kong
4. School of Nursing Yangzhou University Yangzhou People's Republic of China