1. Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
2. Shenzhen Hospital of Integrated Traditional and Western Medicine, Shenzhen, China
3. Health and Social Care Economics Group, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia
4. Registry of Senior Australians, South Australian Health and Medical Research Institute, Adelaide, Australia
5. Business School, University of South Australia, Adelaide, Australia