Wang, Dongdong
Li, Xiaoguang
Yu, Wanjiang
Article History
Received: 26 October 2018
Accepted: 24 February 2019
First Online: 6 March 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts 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.