Symptom AssessmentDepressionSeverity of Illness IndexQuestionnairesTreatment OutcomeBehavioral SymptomsPsychiatric Status Rating ScalesProspective StudiesTime FactorsFollow-Up StudiesVital SignsPrevalenceAffective SymptomsQuality of LifeAnxietyDepressive DisorderRisk FactorsCross-Sectional StudiesFatigueStress Disorders, Post-TraumaticLongitudinal StudiesAsthmaPainCoughRespiration DisordersSchizophreniaMagnetic Resonance ImagingStress, PsychologicalRetrospective StudiesLower Urinary Tract SymptomsSchizophrenic PsychologyPsychotic DisordersGastroesophageal RefluxTomography, X-Ray ComputedOccupational DiseasesHeadacheChronic DiseaseAge FactorsPsychometricsRespiratory Tract DiseasesCohort StudiesComorbidityUrination DisordersGastrointestinal DiseasesSex FactorsRespiratory SoundsAcute DiseaseSyndromePredictive Value of TestsPsychophysiologic DisordersDyspneaProdromal SymptomsPersonality InventoryHot FlashesSensitivity and SpecificityDyspepsiaPain MeasurementAdaptation, PsychologicalRecurrenceReproducibility of ResultsIrritable Bowel SyndromeLogistic ModelsAnalysis of VarianceHallucinationsCase-Control StudiesConstipationAnxiety DisordersPrognosisOccupational ExposureNeuropsychological TestsDelusionsRegression AnalysisHealth StatusNervous System DiseasesDiagnostic and Statistical Manual of Mental DisordersCognition DisordersDepressive Disorder, MajorSubstance Withdrawal SyndromeUnited StatesBrainAntipsychotic AgentsRhinitisLife Change EventsSleep DisordersAffectSelf ReportDisease ProgressionFlatulenceIrritable MoodMental DisordersHealth SurveysAttention Deficit Disorder with HyperactivityCognitive TherapyHeartburnLocation Directories and SignsIncidenceNeurologic ExaminationPilot ProjectsPremenstrual SyndromeInfant, Newborn