Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	http://jmm.microbiologyresearch.org/pubmed/content/journal/jmm/10.1099/jmm.0.028225-0
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=21393449.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21393449/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21393449