Kang, Jian
Zhang, Wei-Qiang
Liu, Wei-Wei
Liu, Jia
Johnson, Michael T.
Funding for this research was provided by:
National Natural Science Foundation of China (No. 61370034)
National Natural Science Foundation of China (No. 61403224)
Article History
Received: 25 October 2017
Accepted: 19 June 2018
First Online: 17 July 2018
Competing interests
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.