Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=27943239.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/27943239/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27943239
	subscription/membership/fee required	Wiley	https://doi.org/10.1111/bjd.15225
	free resource	scite Smart Citations	https://scite.ai/reports/27943239
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/bjd/article-lookup/doi/10.1111/bjd.15225