Liu, Bing
Ouyang, Songying
Makarova, Kira S.
Xia, Qiu
Zhu, Yanping
Li, Zhimeng
Guo, Li
Koonin, Eugene V.
Liu, Zhi-Jie
Huang, Li
Article History
Received: 21 November 2014
Accepted: 27 April 2015
First Online: 22 June 2015
Competing interests
: The authors declare no competing financial interests.