Funding for this research was provided by:
Debra International (NA)
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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