AminoglycosidesGentamicinsAnti-Bacterial AgentsKanamycinTobramycinAmikacinKanamycin KinaseNetilmicinFramycetinParomomycinNeomycinDibekacinAcetyltransferasesNebramycinDrug Resistance, MicrobialSisomicinMicrobial Sensitivity TestsStreptomycinMicromonosporaButirosin SulfateDrug Resistance, BacterialRibostamycinDihydrostreptomycin SulfatePseudomonas aeruginosaBacterial InfectionsProvidenciaEmpirical ResearchHygromycin BGram-Negative Bacterial InfectionsAgranulocytosisBacteremiaDrug Resistance, Multiple, BacterialEscherichia coliEnterococcusNucleotidyltransferasesFeverTicarcillinDrug Therapy, CombinationEnterobacteriaceaeGram-Negative BacteriaVancomycinPiperacillinGram-Positive Bacterial InfectionsEar DiseasesEnterococcus faecalisBacteriaPenicillinsEmpiricismPhosphotransferases (Alcohol Group Acceptor)CeftazidimeTeaching Roundsbeta-LactamsSerratiaPhosphotransferasesHair Cells, AuditoryCross InfectionAcinetobacterSpectinomycinR FactorsDNA, BacterialRibosome Subunits, Small, BacterialBacterial ProteinsIntegronsPlasmidsNitrofurantoinCephalothinKlebsiella pneumoniaeGenes, BacterialHearing LossKanamycin ResistanceCeftriaxoneUrinary Tract InfectionsPseudomonas InfectionsStaphylococcus aureusCarbenicillinMolecular Sequence DataPeritonitisSulfamethizoleCephalosporinsCommunity-Acquired InfectionsGram-Positive BacteriaPenicillanic AcidEnterococcus faeciumEnterobacteriaceae InfectionsStaphylococcusMethyltransferasesDrug SynergismStaphylococcal InfectionsAnti-Infective AgentsIntensive Care UnitsTreatment OutcomeProspective StudiesStreptomycesNeutropeniaKlebsiella InfectionsSepsisConjugation, GeneticHearing DisordersAmpicillinFluorescence Polarization Immunoassay