Helicobacter pyloriHelicobacter InfectionsGastric AcidOmeprazoleStomach NeoplasmsAnti-Ulcer AgentsGastric MucosaAmoxicillinClarithromycin2-PyridinylmethylsulfinylbenzimidazolesBismuthMetronidazoleDuodenal UlcerLansoprazolePentagastrinTinidazoleGastroscopyGastritisProton Pump InhibitorsGastrinsPeptic UlcerGastric JuiceStomachDrug Therapy, CombinationDyspepsiaRanitidineGastrectomyAnti-Bacterial AgentsStomach UlcerRabeprazoleFurazolidoneAntacidsParietal Cells, GastricHelicobacterHistamine H2 AntagonistsBreath TestsSulfoxidesAntitrichomonal AgentsUreaseEndoscopy, GastrointestinalMetaplasiaPyloric AntrumBethanechol CompoundsAchlorhydriaPenicillinsGastritis, AtrophicGastric Acidity DeterminationBenzimidazolesHistamineSecretory RateLymphoma, B-Cell, Marginal ZoneTreatment OutcomeCimetidinePeptonesStomach DiseasesEsophagitis, PepticGastroesophageal RefluxTetracyclineAminopyrineH(+)-K(+)-Exchanging ATPaseVagotomyEndoscopyFamotidineUreaEsomeprazoleProspective StudiesAdenocarcinomaCarcinoma, Signet Ring CellMetiamideTetragastrinDuodenitisBacterial ProteinsOrganometallic CompoundsGastric FistulaLevofloxacinEsophagitisPrecancerous ConditionsFollow-Up StudiesVagotomy, Proximal GastricPepsinogen ANifuratelYogurtDissectionVagus NerveBethanecholTime FactorsAnti-Infective AgentsDrug Administration ScheduleAntigens, BacterialDisease EradicationBiopsyOfloxacinPylorusLymph Node ExcisionSomatostatinNeoplasms, Multiple PrimaryRetrospective StudiesPepsinogensHydrogen-Ion ConcentrationDanazol