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Authors
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Funding
Funding for this research was provided by:
Natural Science Foundation of China (81570203)
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Article History
Received: 8 December 2017
Accepted: 19 April 2018
First Online: 7 May 2018
Compliance with ethical standards
:
: The authors have no competing interests.
: 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. The ethical code is: science research-2015-LW-42. All patients in the study have consent for participation and provided follow-up record.
