Wu, Dan
Wang, Xin
Bai, Junjie
Xu, Xiaoyang
Ouyang, Bin
Li, Yuwei
Zhang, Heye
Song, Qi
Cao, Kunlin
Yin, Youbing
Article History
Received: 23 July 2018
Accepted: 5 November 2018
First Online: 27 November 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in these studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.