Teng, Wangsiyuan
Lin, Peng
Li, Yong
Yan, Xiaobo
Li, Hengyuan
Li, Binghao
Wang, Zhan
Wu, Yan
Wang, Shengdong
Zhou, Xingzhi
Wang, Zenan
Ye, Zhaoming http://orcid.org/0000-0001-5951-5840
Article History
Received: 23 January 2018
Accepted: 5 April 2018
First Online: 27 April 2018
Compliance with ethical standards
: Each author certifies that his institution approved the human protocol for this investigation and that all investigations were conducted in conformity with ethical principles of research.
: All ICMJE conflict of interest forms for authors can be viewed on request.
: The authors declare that they have no conflict of interest.