Song, Limei
Peng, Qinmu
Liu, Shuwei
Wang, Jiaojian
Funding for this research was provided by:
Natural Science Foundation of China (31500867, 31571237)
Article History
First Online: 5 January 2019
Compliance with ethical standards
:
: The authors declare 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.
: Informed consent was obtained from all individual participants included in the study.