Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	http://ijs.microbiologyresearch.org/pubmed/content/journal/ijsem/10.1099/ijs.0.058701-0
	free resource	scite Smart Citations	https://scite.ai/reports/24449791
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/24449791