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Article History

Received: 9 April 2020

Accepted: 27 May 2020

First Online: 10 June 2020

Ethics approval and consent to participate

: Informed consent forms have been signed by all patients before this study. The research protocol has been approved by the Ethics Committee of the Shengjing Hospital of China Medical University and is based on the ethical principles of medical research involving human subjects in the Helsinki Declaration.

: Not applicable.

: The authors declare that they have no competing interests.