Tao, Ronggui
Dai, Jindong
Bai, Yunjin
Yang, Jiyu
Sun, Guangxi
Zhang, Xingming
Zhao, Jinge
Zeng, Hao
Shen, Pengfei
Funding for this research was provided by:
National Clinical Research Center for Geriatrics,West China Hospital, Sichuan University (Z2018A01)
Natural Science Foundation of China (NSFC 81672547)
West China Hospital, Sichuan University (No.0040205301E21)
Article History
Received: 8 August 2019
Accepted: 23 September 2019
First Online: 9 November 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.