Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	http://jmm.microbiologyresearch.org/pubmed/content/journal/jmm/10.1099/jmm.0.46976-0
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=17314377.ui
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/17314377