Li, Yian
Peng, Jie
Li, Jiakai
Zhang, Qi
Li, Jing
Zhang, Xiang
Fei, Ping
She, Kaiqin
Zhao, Peiquan
Article History
Received: 13 December 2017
Revised: 4 July 2018
Accepted: 23 July 2018
First Online: 10 August 2018
Compliance with ethical standards
:
: The authors declare that they have 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. For this type of study, formal consent is not required.
: Informed consent was obtained from all individual participants included in the study. Additional informed consent was obtained from all individual participants for whom identifying information is included in this article.