| Name | Info | Provider | Link |
|---|---|---|---|
| free resource | Elsevier Science | https://linkinghub.elsevier.com/retrieve/pii/S1279-7707(23)00640-1 | |
| COVID-19 (Coronavirus Disease 2019) | free resource | MedlinePlus Health Information | https://medlineplus.gov/covid19coronavirusdisease2019.html |
| free resource | PubMed Central | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/35297462/ | |
| subscription/membership/fee required | Springer | https://link.springer.com/article/10.1007/s12603-021-1724-1 | |
| free resource | Europe PubMed Central | https://europepmc.org/abstract/MED/35297462 |