Name	Info	Provider	Link
Refractive Errors	free resource	MedlinePlus Health Information	https://medlineplus.gov/refractiveerrors.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=26580271.ui
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-SNCG-1
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:26580271
	subscription/membership/fee required	Wolters Kluwer	https://doi.org/10.1097/OPX.0000000000000732