Blood Protein ElectrophoresisParaproteinemiasElectrophoresis, Cellulose AcetateParaproteinsMonoclonal Gammopathy of Undetermined SignificanceElectrophoresisBlood ProteinsElectrophoresis, CapillaryImmunoelectrophoresisElectrophoresis, Agar GelImmunoglobulin lambda-ChainsMultiple MyelomaImmunoglobulin Light ChainsImmunoglobulin kappa-ChainsBromcresol GreenOccult BloodElectrophoresis, Polyacrylamide GelHematologic TestsNephelometry and TurbidimetrySerum Albumingamma-GlobulinsElectrophoresis, Gel, Two-DimensionalBence Jones ProteinSerumGuaiacColonoscopyElectrophoresis, Gel, Pulsed-FieldBacterial ProteinsRNA, Ribosomal, 16SBacterial Typing TechniquesDNA, RibosomalMass ScreeningSigmoidoscopyMolecular WeightColorectal NeoplasmsDNA, BacterialNucleic Acid HybridizationSensitivity and SpecificityBeta-GlobulinsEarly Detection of CancerSerum GlobulinsElectrophoresis, MicrochipElectrophoresis, DiscImmunochemistryBiological Markers