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Article History

Received: 23 November 2018

Accepted: 8 April 2019

First Online: 7 June 2019

Ethics approval and consent to participate

: Not applicable.

: Consent for use of photographs of patients was obtained. In the case of children, consent was obtained from their parent or legal guardian.

: The working panel members and reviewers declared no conflicts of interest with respect to the publication of this guideline. No one involved in the guideline has any connection to manufacturers.

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