Name	Info	Provider	Link
	subscription/membership/fee required	Atypon	https://journals.asm.org/doi/10.1128/JB.00007-11?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
Syphilis	free resource	MedlinePlus Health Information	https://medlineplus.gov/syphilis.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21257765/
REBASE ref# 12553	free resource	REBASE - The Restriction Enzyme Database	http://rebase.neb.com/rebase/refs/12553.html
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21257765