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Article History

Received: 28 January 2018

Accepted: 10 July 2018

First Online: 27 July 2018

Ethics approval and consent to participate

: This retrospective study received the approval of the local committee of Nagoya City University Hospital (no. 60–17-0071, approved on December 6, 2017) and was conducted in compliance with the guidelines of the Helsinki Declaration of 1975. Informed consent was obtained from the patients and their family members.

: Written informed consents were received from patients > 16 years or from the parent/legal guardian if the patient was < 16 years for publication of this report and accompanying images.

: The authors declare that they have no competing interests.

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