Received: 1 April 2019
Accepted: 24 May 2019
First Online: 7 June 2019
Ethics approval and consent to participate
: Subjects (or their parents or guardians) have given their written informed consent. This study was approved by the Ethics Committee of the First Affiliated Hospital, ZheJiang University School of Medicine.
: Written informed consent was obtained from the patient for 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.