Xia, Ying
Zhang, Li
Li, Mingze
Funding for this research was provided by:
National Natural Science Foundation of China (71472054)
Article History
First Online: 29 March 2017
Compliance with Ethical Standards
: 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.