| Name | Info | Provider | Link |
|---|---|---|---|
| free resource | Elsevier Science | https://linkinghub.elsevier.com/retrieve/pii/002978449500320Q | |
| Brain Tumors | free resource | MedlinePlus Health Information | https://medlineplus.gov/braintumors.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=7501347.ui | |
| subscription/membership/fee required | Wolters Kluwer | https://doi.org/10.1016/0029-7844(95)00320-q |