Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.annualreviews.org/content/journals/10.1146/annurev-virology-092818-015716?crawler=true&mimetype=application/pdf
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31283444/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/31283444