Funding for this research was provided by:
National High Technology Research and Development Program (2016YFB0100903)
National Natural Science Foundation Key Project (U1613212)
Beijing Municipal Science and Technology Commission special major (D171100005017002)
Beijing Municipal Science and Technology Commission special major (D171100005117002)
Article History
Received: 12 December 2018
Accepted: 10 October 2019
First Online: 15 November 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.