Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21980310/
	subscription/membership/fee required	Springer	https://link.springer.com/article/10.1007/s11888-011-0090-5
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21980310
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:21980310