| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Elsevier Science | https://linkinghub.elsevier.com/retrieve/pii/S0035-9203(05)00066-0 | |
| Anemia | free resource | MedlinePlus Health Information | https://medlineplus.gov/anemia.html |
| subscription/membership/fee required | Silverchair Information Systems | https://academic.oup.com/trstmh/article-lookup/doi/10.1016/j.trstmh.2005.01.002 |