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Authors
Zuo, Yuzhi
Lin, Jin
Jin, Jin
Qian, Wenwei
Qiu, Guixing
Weng, Xisheng https://orcid.org/0000-0002-3220-2657
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Article History
Received: 3 January 2019
Accepted: 7 June 2019
First Online: 17 June 2019
Ethics approval and consent to participate
: This is a retrospective study, and it was approved by the Ethics Committee of Peking Union Medical College Hospital, Peking Union Medical College, and Chinese Academy of Medical Sciences.
: Not applicable.
: The authors declare that they have no competing interests.
