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Authors
Li, Runqing
Gai, Wei
Zhu, Dong
Lok, Chonghou
Song, Cuidan
Dong, Jingxiao
Han, Ning
Zhang, Yan
Zhao, Xiuying http://orcid.org/0000-0002-5843-7972
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Article History
Received: 3 April 2019
Accepted: 6 May 2019
First Online: 28 May 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee of Beijing Tsinghua Changgung hospital (Approval No. 17120-0-01).
: Not applicable.
: The authors declare that they have no competing interests.
