Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S1383-5769(11)00114-0
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S1383-5769(11)00114-0
SILVA LSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/lsu/pubid/21840416