| Name | Info | Provider | Link |
|---|---|---|---|
| HIV | free resource | MedlinePlus Health Information | https://medlineplus.gov/hiv.html |
| free resource | PubMed Central | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19342652/ | |
| free resource | Europe PubMed Central | https://europepmc.org/abstract/MED/19342652 | |
| free resource | NCI CPTC Antibody Characterization Program | https://antibodies.cancer.gov/detail/CPTC-CD27-3 | |
| subscription/membership/fee required | Silverchair Information Systems | https://journals.aai.org/jimmunol/article-lookup/doi/10.4049/jimmunol.0803801 |