Panic DisorderPanicAgoraphobiaDeath, SuddenAnxiety DisordersDeath, Sudden, CardiacPhobic DisordersSodium LactateTetragastrinClonazepamAlprazolamDiagnostic and Statistical Manual of Mental DisordersSudden Infant DeathPsychiatric Status Rating ScalesPsychoanalytic TherapyCognitive TherapyMental DisordersBipolar DisorderDepressive Disorder, MajorMood DisordersImplosive TherapyAnti-Anxiety AgentsAnxietyAllylglycineStress Disorders, Post-TraumaticAnxiety, SeparationRepression-SensitizationComorbidityHyperventilationObsessive-Compulsive DisorderParoxetineAlcohol-Induced DisordersSerotonin Uptake InhibitorsDysthymic DisorderFearInterview, PsychologicalImipramineDepressive DisorderRelaxation TherapyPersonality InventoryPsychotherapySomatoform DisordersSeverity of Illness IndexHypocapniaRespiration DisordersAlkalosis, RespiratoryAntidepressive Agents, TricyclicElectronystagmographyPsychopharmacologyTreatment OutcomePrevalencePsychotherapy, GroupPsychoanalytic TheoryPsychophysiologic DisordersStartle Reaction