1. National Cancer Registry. Cancer in Ireland 1994−2005, a Summary;National Cancer Registry:Ireland,2007.
2. Stanford, J. L.; Stephenson, R. A.; Coyle, L. M.; Cerhan, J.; Correa, R.; Eley, J. W.; Gilliland, F.; Hankey, B.; Kolonel, L. N.; Kosary, C.; Ross, R.; Severson, R.; West, D.Prostate Cancer Trends 1973−1995, SEER Program;National Cancer Institute:Bethesda, MD, NIH Pub. No. 99-4543,1999.
3. Prostate carcinoma presentation, diagnosis, and staging
4. Prostate Cancer and Prostate-Specific Antigen: The More We Know, the Less We Understand
5. Prostate Specific Antigen: A Critical Assessment of the Most Useful Tumor Marker for Adenocarcinoma of the Prostate