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Diaz JI, Mora LB, Austin PF, Muro-Cacho CA, Cantor AB, Nicosia SV, Pow-Sang JM.Diaz JI, et al.Urology. 1999 May;53(5):931-8. doi: 10.1016/s0090-4295(98)00625-6.Urology. 1999.PMID: 10223486