Sara,
Thank you. I started with the article but they wanted me to purchase a subscription, which I really would have no use for after this. I took your suggestion and googled Recurrence of Prostate Cancer and found a good article in JAMA.
http://jama.ama-assn.org/cgi/content/full/291/11/1325
It is a little dated and so I will continue to search but again I thank you.