CaudoviralesCimicidaePennsylvaniaAniline CompoundsSleep DisordersThiazolesSleepSleep Initiation and Maintenance DisordersPositron-Emission TomographyAmyloid beta-PeptidesActigraphyAlzheimer DiseasePlaque, AmyloidTrazodoneBenzothiazolesLegionellaAmyloidogenic ProteinsQuestionnairesalpha 1-AntitrypsinVocational GuidanceCarbon RadioisotopesLongitudinal StudiesMild Cognitive ImpairmentAmyloidDepressionPolysomnographyRadiopharmaceuticalsBrainCohort StudiesCognition DisordersSeverity of Illness IndexLiver TransplantationNeuropsychological TestsFatigueDiabetes Mellitus, Type 1Cross-Sectional StudiesPsychiatric Status Rating ScalesDisorders of Excessive SomnolenceRisk FactorsQuality of LifeSelf ReportApolipoprotein E4Follow-Up StudiesNeurofibrillary Tangles