Yan, Zi-Yu
Yan, Xiao-Yan
Guo, Chuan-Bin
Xie, Qiu-Fei
Yang, Guang-Ju
Cui, Nian-Hui
Article History
Received: 20 September 2019
Accepted: 25 November 2019
First Online: 18 December 2019
Compliance with ethical standards
:
: Zi-Yu Yan declares that he has no conflict of interest. Xiao-Yan Yan declares that she has no conflict of interest. Chuan-Bin Guo declares that he has no conflict of interest. Qiu-Fei Xie declares that she has no conflict of interest. Guang-Ju Yang declares that he has no conflict of interest. Nian-Hui Cui 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.