| 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=22712858.ui | |
| subscription/membership/fee required | Wiley | https://doi.org/10.1111/j.1365-2230.2012.04386.x | |
| subscription/membership/fee required | Silverchair Information Systems | https://academic.oup.com/ced/article-lookup/doi/10.1111/j.1365-2230.2012.04386.x |