| Name | Info | Provider | Link |
|---|---|---|---|
| free resource | BioMed Central | https://ojrd.biomedcentral.com/articles/10.1186/s13023-022-02314-9 | |
| Porphyria | free resource | MedlinePlus Health Information | https://medlineplus.gov/porphyria.html |
| free resource | PubMed Central | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/35392955/ | |
| free resource | Europe PubMed Central | https://europepmc.org/abstract/MED/35392955 |