Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22375139/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/22375139
	free resource	Frontiers Media SA	https://doi.org/10.3389/fmicb.2012.00064
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/22375139