Huang, Hong
Li, Tingyu
Sun, Yifan
Yu, Linghui
Wang, Changding
Shen, Rong
Ye, Weichun http://orcid.org/0000-0003-1690-5720
Wang, Degui
Li, Yumin
Funding for this research was provided by:
The Fundamental Research Fund for the Central Universities (Nos. lzujbky-2017-k9)
the Natural Science Foundation of Gansu Province, China (No. 17JR5RA209)
Article History
Received: 27 October 2018
Accepted: 2 December 2018
First Online: 4 January 2019
Compliance with ethical standards
: The author(s) declare that they have no competing interests.