| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Ingenta plc | https://www.ingentaconnect.com/openurl?genre=article&issn=&volume=12&issue=1&spage=281&aulast=Wang | |
| Vaccines | free resource | MedlinePlus Health Information | https://medlineplus.gov/vaccines.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=25738605.ui | |
| subscription/membership/fee required | Spandidos Publications | https://www.spandidos-publications.com/mmr/12/1/281 |