Funding for this research was provided by:
Taishan Scholar Foundation of Shandong Province
Natural Science Foundation of Shandong Province (ZR2019BC088)
Funds for Innovation Team of Jinan (2018GXRC004)
Article History
Received: 19 February 2019
Accepted: 19 June 2019
First Online: 28 June 2019
Compliance with Ethical Standards
:
: Deyun He declares that she has no conflict of interest. Zhengzong Wu declares that he has no conflict of interest. Bo Cui declares that he has no conflict of interest. Enbo Xu declares that he has no conflict of interest.
: This article does not contain any studies with human or animal subjects.
: Informed consent was obtained from all individual participants included in the study.