PlasmidsDrug Resistance, MicrobialDrug ResistanceDrug Resistance, BacterialHospitals, TeachingDrug Resistance, NeoplasmHospitals, UniversityHospitals, GeneralConjugation, GeneticDNA, BacterialAnti-Bacterial AgentsEscherichia coliDrug Resistance, MultipleDrug Resistance, Multiple, BacterialR FactorsHospital CostsDisease ResistanceMolecular Sequence DataGenes, BacterialVascular ResistanceMicrobial Sensitivity TestsBacterial ProteinsHospitals, UrbanBase SequenceDrug Resistance, ViralNursing Staff, HospitalEconomics, HospitalMutationHospitals, PediatricHospital Bed CapacityHospitals, SpecialHospitals, DistrictTetracycline ResistanceHospitals, PrivateCloning, MolecularFinancial Management, HospitalTransformation, BacterialPenicillin ResistanceEmergency Service, HospitalLength of StayRetrospective StudiesDNA Transposable ElementsHospital PlanningHospital ChargesTime FactorsHospital DepartmentsHospitalizationAmino Acid SequenceHospitals, PsychiatricSequence Analysis, DNAExtrachromosomal InheritanceCross InfectionPlant DiseasesTetracyclinebeta-Lactam ResistanceHospital UnitsHospital Recordsbeta-LactamasesDrug Resistance, FungalTransformation, GeneticPolymerase Chain ReactionAirway ResistanceEquipment and Supplies, HospitalDNA Restriction EnzymesPhenotypeLibraries, HospitalRestriction MappingChloramphenicol ResistanceDNA ReplicationAmpicillin ResistanceGenetic VectorsStaphylococcus aureusSurgery Department, HospitalPatient AdmissionHospitals, CountyOutpatient Clinics, HospitalPatient DischargeRepliconProspective StudiesHospital Bed Capacity, 500 and overGenotypeF FactorGene Expression Regulation, BacterialResistance TrainingKanamycin ResistanceStreptomycinMethicillin ResistanceAmerican Hospital AssociationChromosomes, BacterialUnited StatesOperonHospitals, MunicipalHospital Information SystemsFood Service, HospitalKanamycinDNA, RecombinantElectrophoresis, Gel, Pulsed-FieldInfant, NewbornErythromycinRisk Factors