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Authors
Shi, Dongli
Ma, Liang
Zhao, Dawei
Chang, Jing
Shao, Chen
Qi, Shi
Chen, Feng
Li, Yunfang
Wang, Xing
Zhang, Yanyan
Zhao, Jing
Li, Hongjun
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Funding
Funding for this research was provided by:
Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding Support (ZYLX201511)
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Article History
Received: 25 July 2018
Accepted: 2 October 2018
First Online: 12 October 2018
Ethics approval and consent to participate
: The study protocol was approved by institutional review board, and the requirement for informed consent was waived due to the retrospective nature of the study.
: 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.
