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Authors
Song, Limei https://orcid.org/0000-0003-2688-0598
Yang, Huadong
Yang, Mingdong
Liu, Dianmei
Ge, Yanming
Long, Jinfeng
Dong, Peng
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Funding
Funding for this research was provided by:
natural science foundation of shandong province (ZR2020QH048)
teaching reform project of weifang medical university (2019YB029)
project of medical and healthy technology development in shandong province (2017WS891)
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Article History
Accepted: 7 August 2021
First Online: 28 August 2021
Declarations
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: 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.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare no conflict of interest.
