Zhao, Chen
Bi, Qing
Bi, Mingguang
Funding for this research was provided by:
General Project of Science Technology Department of Zhejiang Province (2017C37134)
Article History
Received: 11 December 2017
Accepted: 18 February 2018
First Online: 7 March 2018
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: Informed consent was obtained from all individual participants included in the study.
: All procedures involving human participants in this study were performed 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.