Name	Info	Provider	Link
	subscription/membership/fee required	Wiley	https://doi.org/10.1111/j.1365-2761.2008.00920.x
NBRP resources	free resource	National BioResource Project	https://rrc.nbrp.jp/references/list?pubmed=18482385
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/18482385