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Authors
Wu, Ya-Ru
Shi, Xiao-Yun
Ma, Chun-Yan
Zhang, Yue
Xu, Rui-Xia
Li, Jian-Jun
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Funding
Funding for this research was provided by:
Peking Union Medical College (3332016018, 3332018200)
Capital Health Research and Development of Special (201614035)
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Article History
Received: 2 September 2019
Accepted: 28 October 2019
First Online: 9 November 2019
Ethics approval and consent to participate
: The studies were approved by Fuwai Hospital ethics committees, in accordance with the Helsinki Declaration.
: Not applicable.
: The authors declare that they have no competing interests.
