1. Pre- and post-analytical factors that may influence use of serum prostate specific antigen and its isoforms in a screening programme for prostate cancer
2. American Cancer Society guidelines for the early detection of cancer
3. Screening for Prostate Cancer: Recommendation and Rationale
4. 4 T Schersten, MA Baile, J Asua, and E. Jonsson Prostate cancer screening. evidence synthesis and update statements of findings. International Network of Agencies for Health Technology Assessment (INAHTA)1999
5. 5 AAFP. Recommendations for periodic health examinations. American Academy of Family Physicians (AAFP)2004