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3. Tubularized, incised plate urethroplasty for distal hypospadias;Snodgrass;J. Urol.,1994
4. Single-stage hypospadias repair without fistula;Kass;J. Urol.,1990
5. Urethral development in the fetal rabbit and induction of hypospadias: a model for human development;Kurzrock;J. Urol.,2000