Renal DialysisHemodialysis Units, HospitalCapital ExpendituresDithioerythritolKidney Failure, ChronicPeritoneal DialysisDialysisPeritoneal Dialysis, Continuous AmbulatoryDialysis SolutionsPeritoneumPeritonitisUreaIntensive Care UnitsHemodialysis SolutionsCatheters, IndwellingUltrafiltrationTime FactorsNutritional StatusCreatinineNutritional RequirementsProspective StudiesKidneys, ArtificialRetrospective StudiesTreatment OutcomeHemodiafiltration