CotinineMass SpectrometryTandem Mass SpectrometrySpectrometry, Mass, Electrospray IonizationSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGas Chromatography-Mass SpectrometryChromatography, LiquidTobacco Smoke PollutionNicotineChromatography, High Pressure LiquidProteomicsSmokingSalivaSpectrometry, Mass, Secondary IonProteomeMolecular Sequence DataAmino Acid SequenceSpectrometry, Mass, Fast Atom BombardmentPyrrolidinonesElectrophoresis, Gel, Two-DimensionalBiological MarkersReproducibility of ResultsNitrosaminesSensitivity and SpecificityDeuterium Exchange MeasurementPeptidesCalibrationMolecular StructureChromatography, GasReference StandardsIsotope LabelingLimit of DetectionSolid Phase ExtractionPeptide MappingIndicators and ReagentsDeuteriumSubstance Abuse DetectionGanglionic StimulantsGlucuronidesNicotinic AgonistsEnvironmental ExposureMagnetic Resonance SpectroscopyBody Mass IndexCarbohydrate SequenceProteinsIonsTarsAnabasineAryl Hydrocarbon HydroxylasesMeconiumGlucuronatesMetabolomicsPeptide FragmentsTobacco Use DisorderChromatography, Thin LayerHairSmoking CessationFourier AnalysisCarbon MonoxideSelf DisclosureCyclotronsProtein Processing, Post-TranslationalBiotransformationIsotopesAnalytic Sample Preparation MethodsEnvironmental MonitoringProtein BindingTrypsinMetabolomeElectrophoresis, Polyacrylamide GelPolysaccharidesMaternal ExposureTime FactorsGlycosylationPolycyclic Hydrocarbons, AromaticCapillary ElectrochromatographyOligosaccharidesPregnancyCarbohydrate ConformationMolecular WeightLinear ModelsSequence Analysis, ProteinIsomerismChromatography, Reverse-PhaseForensic ToxicologyOxidation-ReductionIndicator Dilution TechniquesMicrosomes, LiverBreath TestsCattleTobaccoTobacco Use Cessation ProductsElectrophoresis, CapillaryModels, MolecularComplex MixturesAir Pollution, IndoorOxygen IsotopesGasesRecombinant Proteins