| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Elsevier Science | https://linkinghub.elsevier.com/retrieve/pii/S0025-7125(23)00091-3 | |
| COVID-19 (Coronavirus Disease 2019) | free resource | MedlinePlus Health Information | https://medlineplus.gov/covid19coronavirusdisease2019.html |
| subscription/membership/fee required | W.B. Saunders | http://journals.elsevierhealth.com/retrieve/pii/S0025-7125(23)00091-3 |