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Authors
Shi, Wen
Huang, Xiao-ming
Feng, Yun-lu
Wang, Feng-dan
Gao, Xiao-xing
Jiao, Yang https://orcid.org/0000-0003-3957-3829
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Funding
Funding for this research was provided by:
Peking Union Medical College (2019zlgc0104)
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Article History
Received: 14 January 2020
Accepted: 3 September 2020
First Online: 29 September 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Peking Union Medical College Hospital (Ref: S-K 921). The ethics committee waived the requirement for informed consent because anonymous data were analyzed retrospectively.
: Written informed consent to publish in the study was obtained from participants or their parent or legal guardian in the case of children under 16.
: The authors declare that they have no competing interests.
