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Article History

Received: 14 August 2018

Accepted: 27 November 2018

First Online: 17 December 2018

Ethics approval and consent to participate

: This study was approved by the Institutional Review Committee of the Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University. All patients signed informed consent forms prior to the study.

: Not applicable.

: The authors declare that they have no competing interests.

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