Xu, Xiaozhi
Zhang, Zhihong
Qiu, Lu
Zhuang, Jianing
Zhang, Liang
Wang, Huan
Liao, Chongnan
Song, Huading
Qiao, Ruixi
Gao, Peng http://orcid.org/0000-0001-9868-2115
Hu, Zonghai
Liao, Lei
Liao, Zhimin http://orcid.org/0000-0001-6361-9626
Yu, Dapeng http://orcid.org/0000-0002-9459-2662
Wang, Enge
Ding, Feng
Peng, Hailin
Liu, Kaihui http://orcid.org/0000-0002-8781-2495
Article History
Received: 30 October 2015
Accepted: 15 June 2016
First Online: 8 August 2016
Competing interests
: The authors declare no competing financial interests.