Huang, Xiaobo
Su, Jianrong
Li, Shuaifeng
Liu, Wande
Lang, Xuedong
Funding for this research was provided by:
Fundamental Research Funds of CAF
National Natural Science Foundation of China (31660236, 31660236)
Article History
Received: 25 June 2018
Accepted: 25 April 2019
First Online: 6 May 2019
Competing Interests
: No conflict of interest exists in the submission of this manuscript, and the manuscript has been approved by all authors for publication. I would like to declare on behalf of my co-authors that the work described is original research that has not been published previously and is not under consideration for publication elsewhere in whole or in part. All of the authors listed have approved the enclosed manuscript.