Name	Info	Provider	Link
	free resource	BioMed Central	https://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-11-230
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21816066/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21816066
SILVA LSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/lsu/pubid/21816066