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Authors
Li, T.
Yu, J.
Chen, Y.
Liu, R.
Li, Y.
Wang, Y. X.
Wang, J. J.
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Article History
Received: 6 November 2019
Accepted: 14 June 2020
First Online: 22 June 2020
Compliance with ethical standards
:
: The authors have no conflicts of interest to declare.
: Approval of the study protocol was obtained from the institution's ethical committee.
: Informed consent forms were signed by all patients.
