If the PDF is not clearly accessible in CINAHL or other databases, ALWAYS click on Check RIC Library for Full Text found below the citation. This link will tell you if we actually do have immediate access to the the article from another source.
If we do not have the journal, there will be a button for requesting the article via Interlibrary Loan. ILL is a service whereby we will acquire books and articles from other libraries (RI and out of state libraries) Materials generally take a few days to arrive at RIC. 
Click on the button and enter your name, and RIC UN and PW
You can also visit RI academic and hospital libraries to access items directly which is your most timely option.