Kidney TransplantationFetal BloodImmunosuppressive AgentsGraft RejectionHeart TransplantationTransplantsTacrolimusCyclosporineSpinal CordGraft SurvivalTransplantation, HomologousTransplantationLung TransplantationTissue DonorsMycophenolic AcidSpinal Cord InjuriesPostoperative ComplicationsBone Marrow TransplantationLiver TransplantationTime FactorsCytomegalovirus InfectionsImmunosuppressionOrgan TransplantationTreatment OutcomeRetrospective StudiesHematopoietic Stem Cell TransplantationImmunocompromised HostHistocompatibility TestingTransplantation ImmunologyBK VirusUmbilical CordLiving DonorsKidney Failure, ChronicPolyomavirus InfectionsBlood BanksGraft vs Host DiseaseWaiting ListsCytomegalovirusBronchiolitis ObliteransTissue and Organ ProcurementHeart-Lung TransplantationInfant, NewbornFollow-Up StudiesLiver FailureCyclosporinsRisk FactorsDrug MonitoringAntigens, CD34Prospective StudiesAntilymphocyte SerumFetal Tissue TransplantationBiopsySirolimusLymphoproliferative DisordersCalcineurinGanciclovirHematopoietic Stem CellsTransplantation ConditioningKidneyCreatininePostoperative PeriodKidney DiseasesTablets, Enteric-CoatedHematologic NeoplasmsCadaverIsoantibodiesOpportunistic InfectionsGingival OvergrowthRecurrenceHLA AntigensIncidenceAntiviral AgentsPregnancyTransplantation, AutologousEnd Stage Liver DiseaseMycosesDrug Therapy, CombinationBiological MarkersTransplantation ToleranceAcute DiseaseHistocompatibilityPancreas TransplantationSurvival AnalysisCord Blood Stem Cell TransplantationSurvival RateRenal DialysisHerpesvirus 6, HumanLeukemiaMonitoring, ImmunologicCohort StudiesAllograftsStem Cell TransplantationKidney Function TestsLiver DiseasesPolymerase Chain ReactionGlomerular Filtration RateFlow CytometryCells, CulturedBrain Tissue TransplantationT-Lymphocytes