Document is current

Article History

Received: 14 June 2018

Accepted: 20 August 2018

First Online: 29 August 2018

Ethics approval and consent to participate

: This study had been approved by the Ethics Committee of the authors’ affiliated institutions, and all the patients signed the informed consent.

: Consent for publication, including photographic images, was provided by the participants at the time of enrollment.

: The authors declare that they have no competing interests.

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