Name Info Provider Link
Older Adult Health free resource MedlinePlus Health Information https://medlineplus.gov/olderadulthealth.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/7999638/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/7999638
subscription/membership/fee required Wiley https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0959-9673&date=1994&volume=75&issue=5&spage=369