AminoglycosidesGastrointestinal TractGentamicinsAnti-Bacterial AgentsDigestive SystemFramycetinTobramycinAmikacinKanamycinNetilmicinParomomycinDigestive System Physiological PhenomenaMicrobial Sensitivity TestsUpper Gastrointestinal TractNeomycinGastrointestinal NeoplasmsDrug Resistance, MicrobialDibekacinSisomicinStreptomycinGastrointestinal DiseasesPseudomonas aeruginosaLower Gastrointestinal TractRibostamycinUrinary Tract InfectionsDrug Resistance, BacterialStomachEnterobacteriaceaeKanamycin KinaseNebramycinDrug Resistance, Multiple, Bacterialbeta-LactamsIntestinal MucosaIntestinesAcetyltransferasesProvidenciaHygromycin BBacteriaIntestine, SmallColonEscherichia coliUrinary TractCecumEnterobacteriaceae InfectionsIntestine, LargeBacterial InfectionsPenicillinsDuodenumFecesEnterococcus faecalisEnteric Nervous SystemGram-Negative Bacterial InfectionsDihydrostreptomycin SulfateMezlocillinButirosin SulfateDrug SynergismGerm-Free LifePseudomonas InfectionsGastrointestinal MotilityCarbenicillinBacterial ProteinsEar Diseasesbeta-LactamasesColony Count, MicrobialCapreomycinDNA, BacterialGastric MucosaIntestinal AbsorptionKlebsiella pneumoniaeRNA, Ribosomal, 16SGastrointestinal ContentsMolecular Sequence DataCephalosporinsIleumEnterococcusHearing DisordersRespiratory Tract InfectionsJejunumCross InfectionLactobacillusPyramidal TractsGastrointestinal HemorrhageFluoroquinolonesEndoscopy, GastrointestinalProbioticsGastrointestinal TransitCodon, NonsenseGram-Positive Bacterial InfectionsAnti-Infective AgentsPiperacillinConjugation, GeneticPlasmidsViomycinEsophagusEscherichia coli InfectionsVancomycinTime FactorsAdministration, OralSerratia marcescensAmpicillin