Name	Info	Provider	Link
	free resource	BioMed Central	https://virologyj.biomedcentral.com/articles/10.1186/1743-422X-5-6
HIV	free resource	MedlinePlus Health Information	https://medlineplus.gov/hiv.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18190699/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/18190699
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-CD4-2