Funding for this research was provided by:
National Natural Science Foundation of China (81971860, 81772110)
the Zhejiang Provincial Natural Science Foundation of China (LQ16H020003)
Article History
Received: 11 February 2020
Accepted: 30 March 2020
First Online: 13 July 2020
Compliance with ethics guidelines
: Fa-chao CHEN, Yin-chuan XU, and Zhao-cai ZHANG declare that they have no conflict of interest.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5). Written informed consent was required from all participants or their legal proxies before registration for being included in the study.