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Article History

Received: 27 November 2017

Accepted: 14 February 2019

First Online: 5 March 2019

Ethics approval and consent to participate

: The study with human tissue was approved by Soonchunhyang University Bucheon Hospital Institutional Review Board (No. SCHBC 2017–01–002-002) and informed consent was obtained from each patient.

: Written informed consent for publication of their clinical details and clinical images was obtained from the patient.

: The authors declare that there are no competing interests in this manuscript.

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