| Name | Info | Provider | Link |
|---|---|---|---|
| Pneumococcal Infections | free resource | MedlinePlus Health Information | https://medlineplus.gov/pneumococcalinfections.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=21886070.ui | |
| subscription/membership/fee required | Southern Medical Association | http://dx.doi.org/10.1097/SMJ.0b013e3182273b82 |