Name	Info	Provider	Link
Clinical Trials	free resource	MedlinePlus Health Information	https://medlineplus.gov/clinicaltrials.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/17722507/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/17722507
	free resource	Dove Medical Press	https://www.dovepress.com/articles.php?article_id=663
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:17722507