Name	Info	Provider	Link
	free resource	HighWire	http://bjo.bmj.com/lookup/pmidlookup?view=long&pmid=29669780
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=29669780.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29669780/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29669780
	free resource	scite Smart Citations	https://scite.ai/reports/29669780