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Authors
Li, Guopeng
Jiang, Zhenhua
Han, Xue
Shang, Xue
Tian, Wanli
Kang, Xiaofei
Fang, Mei
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Funding
Funding for this research was provided by:
Shandong medical and health science and technology development plan (2017WS301)
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Article History
Accepted: 19 February 2020
First Online: 28 February 2020
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
