Name	Info	Provider	Link
Full text from the Univ. of Michigan Library	free resource	MLibrary (Deep Blue)	http://hdl.handle.net/2027.42/90367
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=21761511.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21761511/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21761511
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:21761511