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Authors
Meng, Xin
Zheng, Minjuan
Yu, Ming
Bai, Wei
Zuo, Lei
Bu, Xin
Liu, Yi
Xia, Linying
Hu, Jing
Liu, Liwen
Li, Jianping
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Article History
Received: 31 January 2019
Accepted: 8 April 2019
First Online: 30 May 2019
Ethics approval and consent to participate
: This study was approved by the ethics committee of Xijing Hospital, the Fourth Military Medical University, and followed the ethical guidelines laid down in the 1975 Declaration of Helsinki.
: 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.
