DrainageAbscessRetropharyngeal AbscessSubphrenic AbscessSuppurationLiver AbscessBrain AbscessPancreatic PseudocystAnti-Bacterial AgentsLymphocelePsoas AbscessLiver Abscess, PyogenicSuctionPericardial EffusionMediastinitisOsteomyelitisProstatic DiseasesCellulitisPericarditisPyomyositisTomography Scanners, X-Ray ComputedCardiac TamponadeTomography, X-Ray ComputedBacterial InfectionsNeckAntibiotic ProphylaxisTreatment OutcomeRetrospective StudiesStaphylococcal InfectionsPostoperative ComplicationsMicrobial Sensitivity TestsFollow-Up StudiesMagnetic Resonance ImagingDrug Resistance, BacterialDrug Resistance, MicrobialStreptomycesDrainage, PosturalAntibiotics, AntineoplasticAminoglycosidesDrainage, SanitaryBacteriaGentamicinsChest TubesDrug Utilizationbeta-LactamsPenicillinsSurgical Wound InfectionGlaucoma Drainage ImplantsFermentationTetracyclineStaphylococcus aureusErythromycinEscherichia coliJaundice, ObstructiveAmpicillinMacrolidesDrug Resistance, Multiple, BacterialCephalosporinsGram-Positive BacteriaAnti-Infective AgentsBacterial ProteinsVancomycinKanamycinAbdominal AbscessClindamycinPseudomonas aeruginosaStreptomycinEmpyema, PleuralCiprofloxacinGram-Negative BacteriaLymphoscintigraphyLymphatic SystemTime FactorsCholangiopancreatography, Endoscopic RetrogradeCerebral VeinsCefazolinPenicillin GDebridementDrug PrescriptionsCerebrospinal Fluid ShuntsLactamsCholangitisThoracostomyCholedochostomyDNA, BacterialProspective StudiesChloramphenicolChemistryPneumothoraxChemical PhenomenaTobramycinBiliary Tract Surgical ProceduresCholestasisNeomycinPostoperative CarePleural EffusionVentriculostomyPenicillin ResistancePhysician's Practice PatternsCranial Sinuses