Article History
Received: 10 July 2018
Accepted: 28 November 2018
First Online: 14 December 2018
Ethics approval and consent to participate
: The Wuhan Union Hospital ethics review board approved this study. Patients included in this study consented to their medical records for analysis. The Wuhan Union Hospital approved for this study.
: Not applicable.
: The authors declare that they have no competing interests.
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