Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=21439256.ui
Get Article's Plasmids - Addgene	subscription/membership/fee required	Addgene Non-profit plasmid repository	https://addgene.org/browse/pubmed/21439256