Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=29721316.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29721316/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29721316
	free resource	Cambridge University Press	https://www.cambridge.org/core/product/identifier/00008/type/journal_article
	free resource	scite Smart Citations	https://scite.ai/reports/29721316