Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=26033050.ui
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-AKR1C1-1
	free resource	The British Editorial Society of Bone & Joint Surgery	https://boneandjoint.org.uk/article/10.1302/0301-620X.97B6.35395