| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=15267187.ui | |
| subscription/membership/fee required | Taylor & Francis | https://www.tandfonline.com/doi/full/10.1080/00016480310016884 |