Xiao, Fang
Li, Yueran
Wan, Yajun
Xue, Min
Article History
Received: 13 September 2017
Accepted: 20 February 2018
First Online: 28 March 2018
Compliance with ethical standards
:
: Author Fang Xiao declares that she has no conflict of interest. Author Yueran Li declares that she has no conflict of interest. Author Yajun Wan declares that she has no conflict of interest. Author Min Xue declares that she 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.