Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19470168/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/19470168
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:19470168
	free resource	Ubiquity Press	https://doi.org/10.1186/1740-3391-7-5