Sun, Yi http://orcid.org/0000-0003-0988-7384
Zhou, Kun
Sun, Qian
Liu, Jianping
Feng, Meixin
Li, Zengcheng
Zhou, Yu
Zhang, Liqun
Li, Deyao
Zhang, Shuming
Ikeda, Masao
Liu, Sheng
Yang, Hui
Article History
Received: 8 March 2016
Accepted: 11 July 2016
First Online: 15 August 2016
Competing interests
: The authors declare no competing financial interests.