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Informed consent was obtained from all participants. For participants under the age of 16, consent to participate was obtained from their parents or legal guardians.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Written informed consent for publication was obtained from all participants. For participants under the age of 18, written informed consent for publication of clinical details and\/or clinical images was obtained from their parents or legal guardians. This study was conducted in accordance with the principles of the Helsinki Declaration.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"641"}}