AnxietyAnxiety DisordersDental AnxietyManifest Anxiety ScaleAnxiety, SeparationPhobic DisordersDepressionTest Anxiety ScalePsychiatric Status Rating ScalesAnti-Anxiety AgentsDepressive DisorderQuestionnairesPanic DisorderStress, PsychologicalTreatment OutcomeProspective StudiesPerformance AnxietyFollow-Up StudiesFearCognitive TherapyPersonality InventoryTime FactorsSeverity of Illness Index