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Authors
Yuan, Tao
Ren, Guoli
Hu, Xianning
Geng, Lina
Li, Xueqing
Xia, Shuang
Quan, Guanmin https://orcid.org/0000-0002-7828-3050
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Funding
Funding for this research was provided by:
Institut National des Sciences de l'Univers, Centre National de la Recherche Scientifique (81871342)
Key Project in Medical Science Research of Hebei Province (20170615)
Key Project in Medical Science Research of Hebei Province (20180362)
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Article History
Received: 20 March 2019
Accepted: 22 July 2019
First Online: 7 August 2019
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
: The Ethics Committee of The Second Hospital of Hebei Medical University approved this retrospective study. Due to the retrospective nature of this study, the informed written consent was waved.
