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Article History

Received: 20 April 2016

Accepted: 27 March 2018

First Online: 5 April 2018

Ethics approval and consent to participate

: All examinations and investigations in this case were approved by the Ethical Committee of Shanghai Children’s Hospital (China) and were conducted in accordance with the Declaration of Helsinki.

: Written informed consent was obtained from the parents for publication of this case report and accompanying images. A copy of the written consent is available for review by the Editor of BMC Pediatrics.

: The authors declare that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.