Yang, Shuiyuan
Omori, Toshihiro
Wang, Cuiping
Liu, Yong
Nagasako, Makoto
Ruan, Jingjing
Kainuma, Ryosuke
Ishida, Kiyohito
Liu, Xingjun
Article History
Received: 21 August 2015
Accepted: 27 January 2016
First Online: 16 February 2016
Competing interests
: The authors declare no competing financial interests.