Zhang, Yanyang
Mao, Zhiqi
Pan, Longsheng
Ling, Zhipei
Liu, Xinyun
Zhang, Jun
Yu, Xinguang http://orcid.org/0000-0003-4925-8320
Article History
First Online: 17 June 2019
Compliance with ethical standards
:
: The authors have no competing interests to declare.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.