Deng, X
Shao, G
Zhang, H-T
Li, C
Zhang, D
Cheng, L
Elzey, B D
Pili, R
Ratliff, T L
Huang, J
Hu, C-D
Article History
Received: 27 February 2016
Revised: 10 June 2016
Accepted: 5 July 2016
First Online: 22 August 2016
Competing interests
: The authors declare no conflict of interest.