Peng, Yu
Chen, Ye
Zhang, Xi
Yang, Yu
Cao, Dan
Bi, Feng
Li, Zhipi
Gou, Hongfeng http://orcid.org/0000-0002-8610-1341
Article History
Received: 13 December 2017
Accepted: 30 April 2018
First Online: 17 May 2018
Compliance with ethical standards
:
: Author Hongfeng Gou declares that she has no conflict of interest. Author Yu Peng declares that she has no conflict of interest. Author Ye Chen declares that she has no conflict of interest. Author Xi Zhang declares that he has no conflict of interest. Author Yu Yang declares that she has no conflict of interest. Author Dan Cao declares that she has no conflict of interest. Author Feng Bi declares that he has no conflict of interest. Author Zhiping Li declares that he has no conflict of interest.
: 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.
: Informed consent was obtained from all individual participants included in the study.