Name	Info	Provider	Link
Full text from the Univ. of Michigan Library	free resource	MLibrary (Deep Blue)	http://hdl.handle.net/2027.42/141255
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=18672999.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18672999/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/18672999
	subscription/membership/fee required	Wiley	https://doi.org/10.1902/jop.2008.070624