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Article History

Received: 10 November 2017

Accepted: 23 January 2018

First Online: 30 January 2018

Ethics approval and consent to participate

: This investigation was approved by the institutional review board at Kumamoto University (Ethics No. 1192).

: Written informed consent was obtained from the patient, her mother and a gestational age-matched normal control subject for the publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.

: The authors declare that they have no competing interests.

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