1. The current state of the art. Consensus overview of the classification (M. Roth, Cambridge, U.K.) 2. Beyond DSM-III: re-evaluation of the concepts of panic, agoraphobia, and generalized anxiety disorders (G. Perugi, Pisa, Italy, H. Akiskal, Memphis, TN, G.B. Cassano, Pisa, Italy, J. Deltito, White Plains, NY, and N. Edwards, Memphis, TN) 3. Relationship between anxiety and depression (G.L. Klerman, White Plains, NY) 4. Anxiety disorders: an epidemiologic perspective (M.M. Weissman, New Haven, CT) 5. Family and twin studies of panic disorder and agoraphobia (R.R. Crowe, Iowa City, IA) 6. The natural history of anxiety disorders (R. Noyes, Iowa City, IA) 7. The physiology of anxiety states (W.R. Hobbs, Charlottesville, VA) 8. Biological factors of anxiety (A.P. Levin and M.R. Liebowitz, New York, NY) 9. Neurobiological substrates of anxiety (A. Breier and S.M. Paul, Bethesda, MD) 10. Adult anxiety disorders and childhood separation anxiety (R. Gittelman Klein and D.F. Klein, New York, NY) 11. Anxiety and personality (J.A. Gray, London, U.K.) 12. Anxiety in childhood (I. Kolvin and C. Kaplan, Newcastle upon Tyne, U.K.) 13. The psychodynamic view of anxiety: an historical approach (J.C. Nemiah, Hanover, NH) 14. Transcultural aspects of anxiety (E.-S. Tan, Fitzroy, Australia) 15. Behavioral/psychological treatment of generalized anxiety (J. Cobb, London, U.K.) 16. Physical treatment of anxiety: the benzodiazepines (T.R. Norman, F.K. Judd, P.F. Marriott and G.D. Burrows, Heidelberg, Australia) 17. The therapeutic value, limitations and hazards of treatment of psychiatric disorders with benzodiazepines (R.O. Friedel, Richmond, VA) 18. Recent advances in the study of anxiety (G.W. Fenton, Dundee, U.K.)