Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0923-1811(15)00037-7
Piercing and Tattoos	free resource	MedlinePlus Health Information	https://medlineplus.gov/piercingandtattoos.html
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-TIMP1-1
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-680
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0923-1811(15)00037-7