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Authors
Liu, Jingchao
Zhou, Changkuo
Gao, Wenjun
Huang, Huangwei
Jiang, Xianzhou
Zhang, Dongqing
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Funding
Funding for this research was provided by:
the Key Research and Development Grants of Shandong Province, China (2016GSF201011)
the Key Research and Development Grants of Shandong Province, China (2017GSF221005)
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Article History
Received: 8 December 2018
Accepted: 15 July 2019
First Online: 19 July 2019
Compliance with ethical standards
:
: The authors declare that they have no competing 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.
: Informed consent was obtained from all individual participants included in the study.
