Search the article title to locate the full text. If you see "Access Onine", it will take you to the full text. If there's no Access Onine button, you'll need to request the full text through Information Delivery.
The Trustee Library provides access to many different collections of articles and is an excellent source for academic research. Some of the best collections of articles are listed and linked below.
The Trustee Library also provides access to some multidisciplinary databases, such as the four below. All include articles about issues related to gerontology and may be good places to search for information.