Urogenital SystemWolffian DuctsRespiratory SystemUreterUrogenital AbnormalitiesPAX2 Transcription FactorGenitalia, MaleLung ComplianceRespiratory MechanicsRespiratory Physiological PhenomenaAirway ResistanceMesodermGene Expression Regulation, DevelopmentalIn Situ HybridizationRespiratory System AbnormalitiesHomeodomain ProteinsTranscription FactorsLung Volume MeasurementsKidneyFunctional Residual CapacityLungTidal VolumeRespirationAir SacsRespiration, ArtificialAir PressureOscillometryRespiratory Function TestsPositive-Pressure RespirationPulmonary VentilationRespiratory Tract DiseasesSpirometry