RanitidineOrganometallic CompoundsAntacidsAnti-Ulcer AgentsMetronidazoleSalicylatesAmoxicillinHelicobacter pyloriHelicobacter InfectionsClarithromycinHistamine H2 AntagonistsFurazolidoneDimercaprolTinidazoleDuodenal UlcerDrug Therapy, CombinationTetracyclineOmeprazoleGermaniumKlatskin's TumorAnti-Bacterial AgentsSucralfateCoordination ComplexesPeptic UlcerDyspepsiaPenicillinsRadiation ProtectionHydrocarbons, IodinatedAntimonyGastric MucinsProton Pump InhibitorsThymolphthaleinHepatic Duct, CommonColloidsScintillation CountingBiliary Tract Surgical ProceduresGastritisBreath Tests2-PyridinylmethylsulfinylbenzimidazolesAntidiarrhealsCimetidineBile Ducts, IntrahepaticGastric MucosaAlpha ParticlesGastroscopyTooth DiscolorationMetalsMotor Skills DisordersPsychomotor PerformanceSpectrophotometry, AtomicResins, SyntheticAntitrichomonal AgentsErythromycin EthylsuccinateBile Duct NeoplasmsStomach UlcerSulfoxidesElectrodesMyoclonusMetals, HeavyDrug CombinationsProsthesis ColoringSpectrum AnalysisCampylobacterMovementLansoprazoleSilicatesTime FactorsTreatment OutcomeDuodenumCampylobacter InfectionsIndiumCholangiocarcinomaMetallothioneinNitroimidazolesRadiation-Protective AgentsSalmonellaMusculoskeletal Physiological PhenomenaLevofloxacinCadmiumUreaseStomach DiseasesBile DuctsDouble-Blind MethodAnti-Infective AgentsModels, MolecularZincDental CementsUreaDrug Resistance, MicrobialMercuryIronHydrogen-Ion ConcentrationMotor SkillsAnti-Infective Agents, LocalBiomechanical PhenomenaLeadAminosalicylic AcidsChelating AgentsGlycocalyxMicrobial Sensitivity Tests