DementiaDementia, VascularAlzheimer DiseaseDementia, Multi-InfarctLewy Body DiseaseAIDS Dementia ComplexOutpatient Clinics, HospitalCognition DisordersNeuropsychological TestsAmbulatory Care FacilitiesCaregiversDental ClinicsAtrophyBrainMild Cognitive ImpairmentNursing HomesCognitionRisk FactorsLewy BodiesLongitudinal StudiesPain ClinicsParkinson DiseaseMemory Disorderstau ProteinsApolipoprotein E4Frontotemporal Lobar DegenerationNeurofibrillary TanglesGeriatric AssessmentCohort StudiesPick Disease of the BrainMagnetic Resonance ImagingSeverity of Illness IndexPrevalencePsychiatric Status Rating ScalesPsychomotor AgitationAgingProspective StudiesHomes for the AgedFollow-Up StudiesCross-Sectional StudiesBehavioral SymptomsAge FactorsQuestionnairesRetrospective StudiesDisease ProgressionCholinesterase InhibitorsActivities of Daily LivingWandering BehaviorAmbulatory CareTemporal LobeInstitutionalizationAge of OnsetIncidenceAutopsyNootropic AgentsAmyloid beta-PeptidesPlaque, AmyloidResidential FacilitiesPrimary Health CareReproducibility of ResultsFrontal LobeMental CompetencyEducational StatusNeurodegenerative DiseasesAphasia, Primary ProgressiveUnited StatesTime FactorsDepressionPredictive Value of TestsCommunity Health CentersCase-Control StudiesMass ScreeningGeriatric NursingSupranuclear Palsy, ProgressiveComorbiditySensitivity and SpecificityDeliriumDelirium, Dementia, Amnestic, Cognitive DisordersCerebrovascular DisordersBrief Psychiatric Rating ScaleIndianaVenereologyTreatment OutcomePsychometricsMemoryHallucinationsBehaviorApathyLogistic ModelsCerebral CortexSexually Transmitted DiseasesApolipoproteins EAssisted Living FacilitiesEnglandMemantineAphasiaAnalysis of VarianceDNA Repeat ExpansionSex FactorsPsychological Tests