Article History
Received: 2 April 2020
Accepted: 26 June 2020
First Online: 6 July 2020
Ethics approval and consent to participate
: This trial is approved by the Ethics Committee of the Beijing Friendship Hospital (the approval number from the Ethics Committee is 2019-P2-137-02). All enrolled patients who meet the inclusion criteria need to be fully informed of the study details and signed informed consent on the day before surgery.
: No application.
: The authors declare that they have no competing interests.