Name	Info	Provider	Link
HIV and Infections	free resource	MedlinePlus Health Information	https://medlineplus.gov/hivandinfections.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19046522/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/19046522
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/19046522