1. Department of Guideline and Rapid Recommendation, Cochrane China Centre, MAGIC China Centre, Chinese Evidence‐Based Medicine Centre West China Hospital, Sichuan University Chengdu China
2. Center of Gerontology and Geriatrics West China Hospital, Sichuan University Chengdu China
3. West China School of Nursing West China Hospital, Sichuan University Chengdu China
4. Medical Insurance Office West China Hospital, Sichuan University Chengdu Sichuan China
5. National Clinical Research Center for Geriatrics West China Hospital, Sichuan University Chengdu Sichuan China