Funding for this research was provided by:
1.3.5 project for disciplines of excellence, West China Hospotal, Sichuan University (ZYGD18011, ZY2016104, ZYJC18015)
Article History
Received: 3 April 2020
Accepted: 5 June 2020
First Online: 9 June 2020
Compliance with ethical standards
:
: The authors of this article as well as all the included studies declare that they have no conflict of interest.
: The study protocol is compliant with ethical standards.
: Informed consent was obtained from all individual participants included in the study.