Li, Kunyan
Zhang, Song
Yang, Lin
Jiang, Hongqing
Chi, Zhenyu
Wang, Anran
Yang, Yimin
Li, Xuwen
Hao, Dongmei
Zhang, Lei
Zheng, Dingchang
Funding for this research was provided by:
This study was supported by the International Program for Graduate Students of Beijing University of Technology.
Article History
Received: 14 March 2018
Accepted: 1 October 2018
First Online: 22 October 2018
Competing Interests
: The authors declare no competing interests.