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Authors
Zhao, Feng
Zhu, Jian-Feng
Tang, Wei-Qing
Wang, Yi
Xu, Li-Xin
Chen, Jian-Gen
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Article History
Received: 23 October 2018
Accepted: 30 January 2019
First Online: 18 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts 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.
