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Authors
Lu, Shanshan
Shen, Danhua
Zhao, Yun
Kang, Nan
Wang, Xingxing
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Article History
Received: 5 May 2019
Accepted: 26 June 2019
First Online: 6 July 2019
Ethics approval and consent to participate
: Ethical approval for the study was obtained from the ethics committee of Peking University People’s Hospital (Beijing, China) and the exemption from informed consent was approved as well.
: Not applicable.
: The authors declare that they have no competing interests.
