Symptom AssessmentDepressionQuestionnairesSeverity of Illness IndexBehavioral SymptomsPsychiatric Status Rating ScalesTreatment OutcomeProspective StudiesAffective SymptomsFollow-Up StudiesQuality of LifePrevalenceTime FactorsAnxietyDepressive DisorderRisk FactorsCross-Sectional StudiesStress Disorders, Post-TraumaticFatigueLongitudinal StudiesAsthmaRespiration DisordersSchizophreniaCoughPainStress, PsychologicalRetrospective StudiesLower Urinary Tract SymptomsSchizophrenic PsychologyGastroesophageal RefluxPsychotic DisordersOccupational DiseasesGastrointestinal DiseasesPsychometricsUrination DisordersRespiratory Tract DiseasesMagnetic Resonance ImagingComorbidityHeadacheChronic DiseaseAge FactorsCohort StudiesSex FactorsRespiratory SoundsPsychophysiologic DisordersProdromal SymptomsPersonality InventoryTomography, X-Ray ComputedDyspneaHot FlashesDyspepsiaAcute DiseaseVital SignsAdaptation, PsychologicalSyndromePredictive Value of TestsIrritable Bowel SyndromeHallucinationsAnxiety DisordersPain MeasurementConstipationLogistic ModelsRecurrenceDelusionsOccupational ExposureDiagnostic and Statistical Manual of Mental DisordersHealth StatusDepressive Disorder, MajorReproducibility of ResultsAnalysis of VarianceNeuropsychological TestsCase-Control StudiesRegression AnalysisLife Change EventsCognition DisordersAntipsychotic AgentsPrognosisSleep DisordersFlatulenceAffectRhinitisSensitivity and SpecificityUnited StatesSelf ReportHeartburnCognitive TherapyMental DisordersAttention Deficit Disorder with HyperactivityHealth SurveysIrritable MoodPremenstrual SyndromeNervous System DiseasesSubstance Withdrawal SyndromeDisease ProgressionRhinitis, Allergic, SeasonalActivities of Daily LivingPilot ProjectsIncidenceBrainObsessive-Compulsive Disorder