Name Info Provider Link
subscription/membership/fee required Atypon https://www.acpjournals.org/doi/10.7326/0003-4819-120-5-199403010-00002?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
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=7905722.ui
free resource NCI CPTC Antibody Characterization Program https://antibodies.cancer.gov/detail/CPTC-CD4-1