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Article History
First Online: 1 December 2017
Compliance with ethical standards
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: The article was adapted from the <i>American Journal of Clinical Dermatology</i> 2017;18(2):231:6 [CitationRef removed] by employees of Adis/Springer, who are responsible for the article content and declare no conflicts of interest.
: The preparation of this review was not supported by any external funding.
Free to read: This content has been made available to all.