Liu, Sanzhen
Zheng, Jun
Migeon, Pierre
Ren, Jie
Hu, Ying
He, Cheng
Liu, Hongjun
Fu, Junjie
White, Frank F.
Toomajian, Christopher
Wang, Guoying
Article History
Received: 24 October 2016
Accepted: 10 January 2017
First Online: 10 February 2017
Competing interests
: The authors declare no competing financial interests.