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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=27003495.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/27003495/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27003495
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-CD4-1
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:27003495
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	subscription/membership/fee required	Wolters Kluwer	https://doi.org/10.1097/QAI.0000000000001000