Funding for this research was provided by:
the Key Program of Jilin Province (20180201044NY)
Jilin Educational Committee (3D518L714071)
Article History
Received: 28 August 2019
Accepted: 11 November 2019
First Online: 5 December 2019
Compliance with Ethical Standards
:
: Yi Xiu declares that she has no conflict of interest. Ruiping Luo declares that she has no conflict of interest. Baoqing Han declares that he has no conflict of interest. Lu Liu declares that she has no conflict of interest. Hongsu Wang declares that she has no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Not applicable.