| Name | Info | Provider | Link |
|---|---|---|---|
| Skin Aging | free resource | MedlinePlus Health Information | https://medlineplus.gov/skinaging.html |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19438686.ui | |
| subscription/membership/fee required | Wiley | https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=&date=2009&volume=35&issue=7&spage=1109 | |
| subscription/membership/fee required | Wolters Kluwer | https://doi.org/10.1111/j.1524-4725.2009.01196.x |