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Article History

Received: 12 January 2018

Accepted: 14 February 2018

First Online: 6 March 2018

Ethics approval and consent to participate

: The case presentation was approved by the Institutional Ethics Committee of Hirosaki University Graduate School of Medicine (approval number 2017-1025).

: Written informed consent was obtained from the patients’ guardian for publication of this case report.

: The authors declare that they have no competing interests.

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