Symptom AssessmentDepressionTreatment OutcomeQuestionnairesSeverity of Illness IndexBehavioral SymptomsPsychiatric Status Rating ScalesFollow-Up StudiesTime FactorsProspective StudiesPrevalenceAffective SymptomsQuality of LifeRisk FactorsAnxietyDepressive DisorderCross-Sectional StudiesRetrospective StudiesStress Disorders, Post-TraumaticFatigueLongitudinal StudiesAsthmaPainStress, PsychologicalRespiration DisordersCoughSchizophreniaGastrointestinal DiseasesGastroesophageal RefluxLower Urinary Tract SymptomsChronic DiseasePsychotic DisordersSchizophrenic PsychologyOccupational DiseasesCohort StudiesUrination DisordersPsychometricsRespiratory Tract DiseasesSex FactorsRecurrenceComorbidityHeadachePsychophysiologic DisordersMagnetic Resonance ImagingRespiratory SoundsDyspepsiaHot FlashesAge FactorsPersonality InventoryProdromal SymptomsAcute DiseaseDyspneaUnited StatesIrritable Bowel SyndromeConstipationTomography, X-Ray ComputedAnxiety DisordersAdaptation, PsychologicalRefusal to TreatLogistic ModelsAnalysis of VarianceDepressive Disorder, MajorCognitive TherapySyndromePredictive Value of TestsHallucinationsHealth StatusDiagnostic and Statistical Manual of Mental DisordersRegression AnalysisReproducibility of ResultsMental DisordersDelusionsPrognosisOccupational ExposurePain MeasurementAffectSleep DisordersPilot ProjectsLife Change EventsNeuropsychological TestsCognition DisordersAttention Deficit Disorder with HyperactivityRhinitisFlatulenceSelf ReportHeartburnAntipsychotic AgentsHealth SurveysRandomized Controlled Trials as TopicDrug Therapy, CombinationCase-Control StudiesPremenstrual SyndromeIncidenceRisk AssessmentIrritable MoodRhinitis, Allergic, SeasonalNervous System DiseasesActivities of Daily LivingPhytotherapyDisease Models, Animal