It can be confusing to connect to the full text or PDF copy of articles and chapters, especially where payment of a subscription is required. This requires your authentication to the publisher as member of the Library that holds the subscription.
The surest path to journal articles is via the Library's Journals A to Z catalogue.
If a subscriber link is not available from the button, use the "Request this item via the Library's Document Delivery Service" link.
Library links incorporate a proxy prefix that tells the publisher you're an authorised user of the SE Library.
A quick and easy option is to try a Bookmarklet (note the caveat that describes why it may not always work).
Some articles are freely available (open access). A variety of options are designed to connect to open access - including browser plug-ins. Many are plug-ins to the Chrome browser and will find available OpenAccess articles. Korernio will allow you to set the South Metropolitan Health Service as your Library.
Note that browser plug-ins may be blocked from within the WA Health network, but will work on personal devices.