Qiu, Chen
Shao, Di
Yao, Ying
Zhao, Yue
Zang, Xiaoying
Funding for this research was provided by:
The National Natural Science Fund (71673199)
The Science &Technology Development Fund of Tianjin Education Commission for Higher Education (2017SK097)
Article History
Accepted: 24 April 2019
First Online: 2 May 2019
Compliance with ethical standards
:
: All 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 national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.