Zhang, Wei
Zuo, Zhichao
Luo, Ningbin
Liu, Lianfeng
Jin, Guanqiao
Liu, Junjie
Su, Danke http://orcid.org/0000-0002-3513-0775
Article History
Received: 23 December 2017
Accepted: 30 January 2018
First Online: 12 February 2018
Compliance with ethical standards
:
: All authors declare that there are no conflicts of interests. None bears any financial relationship with the sponsoring organization.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.