Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=1525-4135&volume=89&issue=3&spage=297&aulast=Capoferri
HIV	free resource	MedlinePlus Health Information	https://medlineplus.gov/hiv.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=34753870.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34753870/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34753870
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-CD4-1
	subscription/membership/fee required	Wolters Kluwer	https://doi.org/10.1097/QAI.0000000000002862