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Authors
Chen, Xinlong
Li, Guigang
Gan, Yanling
Chu, Tongsheng
Liu, Dianchang
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Funding
Funding for this research was provided by:
Shandong Provincial Key R&D Plan (2018GSF118062)
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Article History
Received: 28 November 2018
Accepted: 12 March 2019
First Online: 22 March 2019
Ethics approval and consent to participate
: The objects of this study were hospitals rather than human being or animals. We think that it is not applicable to provide a statement on ethics approval and consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
