Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	http://ijs.microbiologyresearch.org/pubmed/content/journal/ijsem/10.1099/ijsem.0.001066
	free resource	scite Smart Citations	https://scite.ai/reports/27054834
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/27054834