Ding, Xibing
Jin, Shuqing
Tong, Yao
Jiang, Xi
Chen, Zhixia
Mei, Shuya
Zhang, Liming
Billiar, Timothy R.
Li, Quan
Article History
Received: 24 March 2016
Accepted: 8 September 2016
First Online: 15 February 2017
Competing interests
: The authors declare no competing financial interests.