Name Info Provider Link
subscription/membership/fee required American Psychological Association http://content.apa.org/journals/neu/26/3/385
Older Adult Health free resource MedlinePlus Health Information https://medlineplus.gov/olderadulthealth.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=22409311.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22409311/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/22409311