1. School of Nursing, Sun Yat-sen University, Guangzhou, China
2. School of Nursing, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
3. School of Economics and Management, Guangzhou University of Chinese Medicine, Guangzhou, China
4. Institute for Global Health and Development, Queen Margaret University, Edinburgh, UK
5. Division of Nursing, School of Health Sciences, Queen Margaret University, Edinburgh, UK