Luo, Lan
Yan, Chen
Urata, Yoshishige
Hasan, Al Shaimaa
Goto, Shinji
Guo, Chang-Ying
Zhang, Shouhua
Li, Tao-Sheng
Article History
Received: 25 August 2016
Accepted: 13 December 2016
First Online: 18 January 2017
Competing interests
: The authors declare no competing financial interests.