Li, X.
Hu, Z.
Wang, H.
Funding for this research was provided by:
National Natural Science Foundation of China (61773114, 61472089)
Joint Fund of the National Natural Science Foundation of China and Guangdong Province (U1501254)
Science and Technology Planning Project of Guangdong Province (2015B010131015, 2015B010108006)
China Scholarship Council Fund (201603780037)
Article History
Received: 2 January 2018
Accepted: 23 July 2018
First Online: 1 August 2018
Compliance with Ethical Standards
: Ethical approval: All the procedures performed in the studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee as well as with the 1964 Helsinki declaration and its later amendments, or comparable ethical standards.
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all the individual participants included in the study.