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Authors
Zheng, Zhibo
Zhou, Zhien
Yan, Weigang
Zhou, Yi
Chen, Chuyan
Li, Hanzhong
Ji, Zhigang
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Article History
Received: 18 November 2019
Accepted: 5 April 2020
First Online: 22 April 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Peking Union Medical College Hospital.
: Not applicable.
: The authors declare that they have no competing interests.
