| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=37907377.ui | |
| subscription/membership/fee required | Silverchair Information Systems | https://aacnjournals.org/ajcconline/article-lookup/doi/10.4037/ajcc2023896 |