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	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=1792-0981&volume=14&issue=3&spage=2568&aulast=Wu
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=28962196.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28962196/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/28962196
	free resource	scite Smart Citations	https://scite.ai/reports/28962196