ClarithromycinAnti-Bacterial AgentsAmoxicillinAzithromycinHelicobacter pyloriHelicobacter InfectionsMetronidazoleErythromycinRoxithromycinOmeprazoleAnti-Ulcer AgentsDrug Therapy, CombinationMicrobial Sensitivity Tests2-PyridinylmethylsulfinylbenzimidazolesRifabutinBismuthKetolidesLansoprazoleMacrolidesMycobacterium avium-intracellulare InfectionMycobacterium avium ComplexRNA, Ribosomal, 23STinidazoleEthambutolDrug Resistance, BacterialPenicillinsRanitidineMycobacterium aviumProton Pump InhibitorsDrug Resistance, MicrobialPeptic UlcerAnti-Infective AgentsDuodenal UlcerDyspepsiaSulfoxidesOfloxacinDelivery of Health CareHealth PersonnelLevofloxacinJosamycinMycobacterium Infections, NontuberculousClofazimineDrug InteractionsRabeprazoleFluoroquinolonesFurazolidoneRifamycinsTreatment OutcomeBreath TestsAntibiotics, AntitubercularAntitrichomonal AgentsTetracyclineMycobacterium InfectionsRifampinHaemophilus influenzaeMycobacteriumAmikacinHealthcare DisparitiesHealth Care CostsUnited States Agency for Healthcare Research and QualityBenzimidazolesAmoxicillin-Potassium Clavulanate CombinationStreptococcus pneumoniaeAdministration, OralUnited StatesDouble-Blind MethodMycobacterium chelonaeBulgariaColony Count, MicrobialMinocyclineNontuberculous MycobacteriaCiprofloxacinMycobacterium fortuitumMycobacterium xenopiAza CompoundsAntitubercular AgentsStomachProspective StudiesDrug Resistance, Multiple, BacterialQuinolonesGastritisChlamydophila pneumoniaeArea Under CurveGastric MucinsHealth Services AccessibilityDrug CombinationsMycobacterium kansasiiHealth ServicesPoint Mutation