Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/3683387/
	subscription/membership/fee required	Taylor & Francis	https://www.tandfonline.com/doi/full/10.1128/mcb.7.10.3402-3408.1987
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/3683387