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Article History
Received: 25 January 2020
Accepted: 18 April 2020
First Online: 5 May 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts of interest to disclose.
: This study was reviewed and approved by the Ethics Committee of Peking University People's Hospital. Each patient was fully informed of the procedure and the goal of the study and provided written consent.
