| Name | Info | Provider | Link |
|---|---|---|---|
| Menstruation | free resource | MedlinePlus Health Information | https://medlineplus.gov/menstruation.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=30830232.ui | |
| subscription/membership/fee required | Southern Medical Association | http://dx.doi.org/10.14423/SMJ.0000000000000949 |