Comment on

• The association between total prostate specific antigen concentration and prostate specific antigen velocity.

  Yu X, Loeb S, Roehl KA, Han M, Catalona WJ. Yu X, et al. J Urol. 2007 Apr;177(4):1298-302; discussion 1301-2. doi: 10.1016/j.juro.2006.12.003. J Urol. 2007. PMID: 17382716
• Prostate cancer screening and disease management: how screening may have an unintended effect on survival and mortality-the camel's nose effect.

  Walsh RM, Thompson IM. Walsh RM, et al. J Urol. 2007 Apr;177(4):1303-6. doi: 10.1016/j.juro.2006.11.064. J Urol. 2007. PMID: 17382719
• Use and awareness of prostate specific antigen tests and race/ethnicity.

  McFall SL. McFall SL. J Urol. 2007 Apr;177(4):1475-80; discussion 1480. doi: 10.1016/j.juro.2006.11.096. J Urol. 2007. PMID: 17382758