Hua, G
Lv, X
He, C
Remmenga, S W
Rodabough, K J
Dong, J
Yang, L
Lele, S M
Yang, P
Zhou, J
Karst, A
Drapkin, R I
Davis, J S
Wang, C
Article History
Received: 13 January 2015
Revised: 11 June 2015
Accepted: 6 July 2015
First Online: 14 September 2015
Competing interests
: The authors declare no conflict of interest.