Urogenital SystemWolffian DuctsUreterUrinary BladderUrogenital AbnormalitiesPAX2 Transcription FactorUrinary Bladder NeoplasmsGenitalia, MaleMesodermGene Expression Regulation, DevelopmentalIn Situ HybridizationHomeodomain ProteinsUrinary Bladder DiseasesTranscription FactorsKidneyUrinary Bladder, OveractiveUrinary Bladder, NeurogenicUrinary Bladder Neck ObstructionUrinary Bladder CalculiCarcinoma, Transitional Cell