Lichtenstein Hernia Institute and the Division of General Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA. Competing Interests Declared: None. *Correspondence address: Parviz K Amid, MD, UCLA Medical Center, 72-215 CHS, Los Angeles, CA 90095-6904. email: [email protected] Submitted January 25, 2007; revised February 22, 2007; accepted April 2, 2007.
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Amid et al. (2007) studied this question.