Yao, Wei
Dong, Kuiran
Li, Kai
Zheng, Shan
Xiao, Xianmin
Article History
Accepted: 29 May 2018
First Online: 7 June 2018
Compliance with ethical standards
:
: All authors of this article had 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.