CystoscopyColonoscopyCystoscopesUrinary Bladder NeoplasmsColonic PolypsColonoscopesUrinary Bladder DiseasesCatharticsHematuriaColonography, Computed TomographicColorectal NeoplasmsOccult BloodIndigo CarmineUrinary BladderSigmoidoscopyColonic DiseasesUrologic DiseasesUrethral ObstructionAdministration, IntravesicalEnemaAdenomaAdenomatous PolypsCarcinoma, Transitional CellBisacodylDiagnostic Techniques, UrologicalUrologyEarly Detection of CancerUrinary Bladder CalculiBarium SulfateUrologic Surgical ProceduresMass ScreeningUrinary Bladder FistulaGastroenterologyUrographyAminolevulinic AcidIntestinal PolypsCystitis, InterstitialSensitivity and SpecificityCystostomyColonic NeoplasmsGastrointestinal HemorrhageConscious SedationUreteral NeoplasmsUreterProspective StudiesUrethral Diseases