Li, Xia
Wang, Xiupeng
Zhang, Jun
Hanagata, Nobutaka
Wang, Xuebin
Weng, Qunhong
Ito, Atsuo
Bando, Yoshio
Golberg, Dmitri
Article History
Received: 23 July 2014
Accepted: 15 November 2016
First Online: 6 January 2017
Competing interests
: The authors declare no competing financial interests.