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Article History
Received: 15 January 2020
Accepted: 13 July 2020
First Online: 8 August 2020
Ethics approval and consent to participate
: The ethics review board of the Orthopedic Hospital of Shenyang, Shenyang City, Liaoning Province approved our study. Written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
