Tissue DonorsBlood DonorsLiving DonorsQuestionnairesRisk FactorsCross-Sectional StudiesProspective StudiesTime FactorsCohort StudiesFollow-Up StudiesTreatment OutcomeUnited StatesLongitudinal StudiesAge FactorsTissue and Organ ProcurementHealth Knowledge, Attitudes, PracticePilot ProjectsAnalysis of VarianceInterviews as TopicSex FactorsNeuropsychological TestsGraft SurvivalTransplantation, HomologousMotivationFocus GroupsLogistic ModelsResearch SubjectsCase-Control StudiesKidney TransplantationAfrican AmericansRisk AssessmentReproducibility of ResultsBody Mass IndexHIV InfectionsLiver TransplantationPatient SelectionQualitative ResearchSeverity of Illness IndexRetrospective StudiesAttitude to HealthIncidenceCognitionMultivariate AnalysisPatient ComplianceSmokingAgingDepressionMagnetic Resonance ImagingLinear ModelsPsychomotor PerformanceQuality of LifeResearch DesignPatient Education as TopicProgram EvaluationReaction TimeInternetRegression AnalysisDecision MakingData CollectionInformed ConsentSelf ReportPatient SatisfactionEmotionsHealth BehaviorCognition DisordersOdds RatioDouble-Blind MethodAttentionPsychiatric Status Rating ScalesEuropean Continental Ancestry GroupHealth StatusObesityRandomized Controlled Trials as TopicChi-Square DistributionHealth PromotionExerciseChronic DiseaseActivities of Daily LivingFeasibility StudiesChoice BehaviorMass ScreeningBiological MarkersTissue and Organ HarvestingInterpersonal RelationsHistocompatibility TestingSocial SupportHealth SurveysAffectEducational StatusSelf ConceptPatient ParticipationStress, PsychologicalMotor ActivityPatient Acceptance of Health CareStudentsProportional Hazards ModelsLife StyleCardiovascular DiseasesPerceptionAttitude