| Name | Info | Provider | Link |
|---|---|---|---|
| Collapsed Lung | free resource | MedlinePlus Health Information | https://medlineplus.gov/collapsedlung.html |
| subscription/membership/fee required | Nature Publishing Group | https://doi.org/10.1203/PDR.0b013e31817d9b93 | |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=18458659.ui |