Zhang, Da http://orcid.org/0000-0002-0790-9298
Zhang, Qin
Qi, Shaozhou
Huang, Jinpeng
Karplus, Valerie J. http://orcid.org/0000-0001-5493-9150
Zhang, Xiliang http://orcid.org/0000-0003-0822-2794
Article History
Received: 17 May 2017
Accepted: 19 December 2018
First Online: 28 January 2019
Competing interests
: The authors declare no competing interests.