American Psychiatric Association, Committee on Nomenclature and Statistics. Diagnostic and Statistical Manual of Mental Disorders, Third Edition . Washington, DC: American Psychiatric Association; 1980;.
American Psychiatric Association, Committee on Nomenclature and Statistics. Diagnostic and Statistical Manual of Mental Disorders, Revised Third Edition . Washington, DC: American Psychiatric Association; 1987;.
Von Korff MR, Eaton WW, Keyl PM.  The epidemiology of panic attacks and panic disorder . Am J Epidemiol . 1985;;122:970-981.
Zitrin CM, Klein DF, Woermer MG.  Behavior therapy, supportive psychotherapy, imipramine and phobias . Arch Gen Psychiatry . 1978;;35:307-321.
Hoehn-Saric R.  Comparison of generalized anxiety disorder with panic disorder patients . Psychopharmacol Bull . 1982;;18:104-108.
Torgerssen S.  Childhood and family characteristics in panic and generalized anxiety disorders . Am J Psychiatry . 1986;;143:630-632.
Breier A, Charney DS, Heninger GR.  The diagnostic validity of anxiety disorder and their relationship to depressive illness . Am J Psychiatry . 1985;;142:787-797.
Sheehan DV, Carr DB, Fishman SM, Walsh MM, Peltier-Saxe D.  Lactate infusion in anxiety research: its evolution and practice . J Clin Psychiatry . 1985;;46:158-165.
Cloninger CR, Martin RL, Clayton P, Guze SB. Â A blind follow-up and family study of anxiety neurosis: preliminary results of the St Louis 500Â . In: Klein DF, Rabtkin J, eds. Anxiety: New Research and Changing Concepts . New York, NY: Raven Press; 1981;.
Coryell W, Endicott J, Andreasen NC, Keller MB, Clayton PJ, Hirschfeld RMA, Scheftner WA, Winokur G.  Depression and panic attacks: the significance of overlap as reflected in follow-up and family data . Am J Psychiatry . 1988;;145:293-300.
Stein MB, Uhde TW.  Panic disorder and major depression: a tale of two syndromes . Psychiatr Clin North Am . 1988;;11:441-461.
Breier A, Charney DS, Heninger GR.  Major depression in patients with agoraphobia and panic disorder . Arch Gen Psychiatry . 1984;;41:983-989.
Lesser IM, Rubin RI, Pecknold JC, Rifkin A, Swinson RP, Lydiard RB, Burrows GD, Noyes R, Du Pont RL.  Secondary depression in panic disorder and agoraphobia . Arch Gen Psychiatry . 1988;;45:437-443.
Van Valkenburg C, Akiskal HS, Puzantian V, Rosenthal T.  Anxious depressions: clinical, family history and naturalistic outcome: comparisons with panic and major depressive episode . J Affect Disord . 1984;;6:67-82.
Munjack M, Moss HB.  Affective disorder and alcoholism in family of agoraphobics . Arch Gen Psychiatry . 1981;;38:869-871.
Clancy J, Noyes R, Hoenk PR, Slymen DJ.  Secondary depression in anxiety neurosis . J Nerv Ment Dis . 1978;;166:846-850.
Woodruff RA Jr, Guze SB, Clayton PJ.  Anxiety neuroses among psychiatric outpatients . Compr Psychiatry . 1972;;13:165-170.
Aronson TA, Logne CM.  On the longitudinal course of panic disorder: developmental history and predictors of phobia complications . Compr Psychiatry . 1987;;28:344-355.
Charney DS, Heninger GR, Price LH, Breier A.  Major depression and panic disorder: diagnostic and neurobiological relationship . Psychopharmacol Bull . 1986;;22:503-511.
Uhde TW, Boulenger JP, Roy-Burne PP, Vittone BJ.  Longitudinal course of panic disorder: clinical and biological considerations . Prog Neuropsychopharmacol Biol Psychiatry . 1985;;9:39-51.
Stein MB, Tancer ME, Uhde TW.  Major depression in patients with panic disorder: factors associated with course and recurrence . J Affect Disord . 1990;;19:287-296.
Vollrath M, Koch R, Angst J.  The Zurich Study, IX: panic disorder and sporadic panic: symptoms, diagnosis, prevalence and overlap with depression . Eur Arch Psychiatry Neurol Sci . 1990;;239:221-230.
Wittchen HU. Â Natural history and spontaneous remissions of untreated anxiety disorders: results of the Munich Follow-up Study (MFS)Â . In: Hand I, Wittchen HU, eds. Panic and Phobias 2. Treatment and Variables Affecting Course and Outcome . New York, NY: Springer-Verlag NY Inc; 1988;.
Leckman JF, Weissman MM, Merikangas KR, Pauls DL, Prusoff BA.  Panic disorder increases the risk of major depression, alcoholism, panic and phobic disorders in affectively ill families . Arch Gen Psychiatry . 1983;;41:845-852.
Cox BJ, Norton R, Dorward J, Fergusson PA.  The relationship between panic attacks and chemical dependencies . Addict Behav . 1989;;14:53-60.
Kushner MG, Kenneth JS, Beitman BD.  The relation between alcohol problems and the anxiety disorders . Am J Psychiatry . 1990;;147:685-695.
George DT, Nutt DJ, Dwyer BA, Linnoila M.  Alcoholism and panic disorder: is the comorbidity more than a coincidence? Acta Psychiatr Scand . 1990;;81:97-107.
Burke JD, Wittchen HU, Regier DA, Sartorius N.  Extracting information from diagnostic interviews on co-occurrence of symptoms of anxiety and depression . In: Maser JD, Cloninger CR, eds. Comorbidity of Mood and Anxiety Disorders . Washington, DC: American Psychiatric Association Press; 1990;:649-667.
Roy A, Linnoila M.  Alcoholism and suicide . Suicide Life Threat Behav . 1986;;16:244-273.
Roy A. Suicide. In: Kaplan HI, Sadock BJ, eds. Comprehensive Textbook of Psychiatry . 5th ed. Baltimore, Md: Williams & Wilkins; 1989;;2.
Ennis J, Barnes RA, Kennedy S, Trachtenberg DD.  Depression in selfharm patients . Br J Psychiatry . 1989;;154:41-47.
Roy A, Lamparski D, Dejong J, Moore V, Linnoila M.  Characteristics of alcoholics who attempt suicide . Am J Psychiatry . 1990;;147:761-765.
Coryell W, Noyes R Jr, Clancy J.  Excess mortality in panic disorders: a comparison with primary unipolar depression . Arch Gen Psychiatry . 1982;;39:701-703.
Weissman MM, Klerman GL, Markowitz JS, Ouellette R.  Suicidal ideation and suicide attempts in panic disorder and attacks . N Engl J Med . 1989;;321:1209-1241.
Fyer AJ, Endicott J, Manuzza S, Klein DF. Schedule for Affective Disorders and Schizophrenia-Lifetime Version (Modified for the Study of Anxiety Disorders) . New York, NY: Anxiety Disorders Clinic, New York State Psychiatric Institute; 1985;.
Mannuzza S, Fyer AJ, Martin LY, Gallops MS, Endicott J, Gorman JM, Liebowitz MR, Klein DF.  Reliability of anxiety assessment, I: diagnostic agreement . Arch Gen Psychiatry . 1989;;46:1093-1102.
Johnson J, Weissman MM, Klerman GL.  Panic disorder, comorbidity, and suicide attempts . Arch Gen Psychiatry . 1990;;47:805-808.
Boyd JH, Burke JD, GrĂĽnberg E, Holzer CE, Rae DS, George LK, Karno M, Stolzman R, McEvoy L, Nestadt G. Â Exclusion criteria of DSM-IIIÂ . Arch Gen Psychiatry . 1984;;41:983-989.
Weissman MM, Leckman JF, Merikangas KR, Gammon GD, Prusoff BA.  Depressive and anxiety disorder in parents and children . Arch Gen Psychiatry . 1984;;40:1055-1060.
Weissman MM. Â The epidemiology of suicide attempts, 1960 to 1971Â . Arch Gen Psychiatry . 1974;;30:737-746.
Klein DF.  Endogenomorphic depression . Arch Gen Psychiatry . 1974;;31:447-454.
Angst J. Â Reccurrent brief depression: a new concept of mild depression: Abstracts of the XVIth Collegium Internationale NeuroPsychopharmacologicum Congress, Munich, 1988Â . Psychopharmacology . 1988;;96(
(suppl)
):123.
Abbar M, Chignon JM, Amadéo S, Schenk L, Picot MC, Castelnau D.  Panic disorder in suicide attempters . Clin Neuropharmacol . 1992;;15(
(suppl 1)
):57B. Abstract.
Coryell W.  Mortality after thirty to forty years: panic disorder compared with other psychiatric illnesses . In: Grinspoon L, ed. Psychiatry Update Vol III . Washington, DC: American Psychiatric Association; 1984;: 460-467.
Allgulander C, Lavori PW.  Excess mortality among 3302 patients with 'pure'n anxiety neurosis . Arch Gen Psychiatry . In press.