Du, Lei-Lei
Xue, Ying
Xie, Jing
Funding for this research was provided by:
National Natural Science Foundation of China (81503361)
Collaborative Innovation Center of Sichuan for Elderly Care and Health, Chengdu Medical College (YLZBZ1820)
Article History
Received: 17 January 2018
Revised: 27 February 2018
Accepted: 5 March 2018
First Online: 10 March 2018
Compliance with Ethical Standards
:
: Lei-Lei Du declares that she has no conflict of interest. Ying Xue declares that she has no conflict of interest. Jing Xie declares that she has no conflict of interest.
: This article does not contain any studies with human participants or animals performed by the author.