RanitidineOrganometallic CompoundsAntacidsAnti-Ulcer AgentsMetronidazoleSalicylatesAmoxicillinHelicobacter pyloriHelicobacter InfectionsClarithromycinHistamine H2 AntagonistsFurazolidoneDimercaprolTinidazoleDuodenal UlcerDrug Therapy, CombinationTetracyclineOmeprazoleGermaniumKlatskin's TumorAnti-Bacterial AgentsSucralfateIon ChannelsPeptic UlcerDyspepsiaPenicillinsRadiation ProtectionHydrocarbons, IodinatedAntimonyGastric MucinsProton Pump InhibitorsThymolphthaleinHepatic Duct, CommonScintillation CountingColloidsBreath TestsBiliary Tract Surgical ProceduresGastritisAntidiarrheals2-PyridinylmethylsulfinylbenzimidazolesCimetidineGastric MucosaIon TransportBile Ducts, IntrahepaticAlpha ParticlesIon Channel GatingGastroscopyTooth DiscolorationMetalsSpectrophotometry, AtomicResins, SyntheticElectrodesAntitrichomonal AgentsErythromycin EthylsuccinateSulfoxidesHeavy IonsBile Duct NeoplasmsStomach UlcerMyoclonusMetals, HeavyDrug CombinationsProsthesis ColoringCampylobacterSilicatesLansoprazoleCampylobacter InfectionsHydrogen-Ion ConcentrationDuodenumIndiumTreatment OutcomeRadiation-Protective AgentsCholangiocarcinomaNitroimidazolesSalmonellaUreaseMetallothioneinLevofloxacinBile DuctsStomach DiseasesAnti-Infective AgentsDrug Resistance, MicrobialUreaDental CementsDouble-Blind MethodAnti-Infective Agents, LocalMercuryRadioisotopesAminosalicylic AcidsElectrochemistryLeadGlycocalyxTime FactorsDrug Administration ScheduleMicrobial Sensitivity TestsOfloxacinCadmiumGastrinsChelating AgentsPhantoms, ImagingRadiation Dosage