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Authors
Chen, Dong https://orcid.org/0000-0003-0363-7712
Xie, Hongzhi
Gu, Lixu
Guo, Wei
Tian, Liang
Liu, Jing
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Funding
Funding for this research was provided by:
the National Natural Science Foundation of China (61902109)
the Natural Science Foundation of Hebei Province (F2019205070)
the Science Foundation of Hebei Normal University (L2019B01)
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Article History
Received: 20 October 2019
Accepted: 3 April 2020
First Online: 28 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the 8 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.
