| Name | Info | Provider | Link |
|---|---|---|---|
| subscription/membership/fee required | HighWire | https://jmg.bmj.com/lookup/pmidlookup?view=long&pmid=19451135 | |
| Birth Defects | free resource | MedlinePlus Health Information | https://medlineplus.gov/birthdefects.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19451135.ui |