| Name | Info | Provider | Link |
|---|---|---|---|
| Abortion | free resource | MedlinePlus Health Information | https://medlineplus.gov/abortion.html |
| free resource | NCI CPTC Antibody Characterization Program | https://antibodies.cancer.gov/detail/CPTC-HLA-B-1 | |
| subscription/membership/fee required | Silverchair Information Systems | https://read.dukeupress.edu/jhppl/article-lookup/doi/10.1215/03616878-10449914 |