Name	Info	Provider	Link
	free resource	BioMed Central	https://virologyj.biomedcentral.com/articles/10.1186/1743-422X-7-141
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20584272/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/20584272
Full text from	free resource	Diposit Digital de la Universitat de Barcelona	http://hdl.handle.net/2445/13644
	free resource	Spiral, Imperial College Digital Repository	http://hdl.handle.net/10044/1/55005