You can find and read the studies that are referenced in the pages of Perspectives on Prostate Disease by searching PubMed, a resource of the National Library of Medicine. The abstracts (short summaries) of the studies are available for free, but in most cases you will have to pay to obtain the full report.
Here's how to access an abstract:
Open up your browser's window while connected to the Internet. Type www.pubmed.gov and hit return.
This brings you to the PubMed welcome page. You will see the following: