Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=10971223.ui
	subscription/membership/fee required	Wiley	https://doi.org/10.1046/j.1365-201x.2000.00753.x