CreatinineKidney Failure, ChronicRenal InsufficiencyKidneyKidney DiseasesKidney TransplantationAcute Kidney InjuryHeart FailureKidney Function TestsGlomerular Filtration RateRenal DialysisRefeeding SyndromeProteinuriaPodocytesDiabetic NephropathiesRisk FactorsTime FactorsPolycystic Kidney, Autosomal DominantRenal Insufficiency, ChronicNephrectomyKidney TubulesLipocalinsBiological MarkersTreatment FailureDisease ProgressionTreatment OutcomeAlbuminuriaPeritoneal DialysisRetrospective StudiesAlbertaFollow-Up StudiesKidney CortexProspective StudiesCohort StudiesChronic DiseaseHypertensionRisk AssessmentDisease Models, AnimalKidney GlomerulusBlood PressureProportional Hazards ModelsSeverity of Illness IndexPrognosisCystatin CCardiovascular DiseasesAntihypertensive AgentsIncidenceBlood Urea NitrogenUnited StatesPolycystic Kidney DiseasesKidney NeoplasmsKidney Tubules, ProximalKidney MedullaKidney CalculiFailure to ThriveUreaLiver Failure, AcuteKidney Tubular Necrosis, AcuteLiver FailureKidney Tubules, CollectingCystatinsGraft RejectionCreatinePredictive Value of TestsMultiple Organ FailureUrinalysisGraft SurvivalImmunosuppressive AgentsKidney Concentrating Ability