| Name | Info | Provider | Link |
|---|---|---|---|
| HIV and Infections | free resource | MedlinePlus Health Information | https://medlineplus.gov/hivandinfections.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19093811.ui | |
| free resource | NCI CPTC Antibody Characterization Program | https://antibodies.cancer.gov/detail/CPTC-CD4-2 | |
| subscription/membership/fee required | Silverchair Information Systems | https://academic.oup.com/cid/article-lookup/doi/10.1086/595710 |