Rudden, M.,Milrod, B., Aronson,A.,& Target, M. ( 2008). Reflective functioning in panic disorder patients: Clinical observations and research design. In F.N.Busch (Ed.), Mentalization.Theoretical considerations, research findings and clinical implications (pp.133-158).New York: The Analytic Press. En Gullestad, F.S., Wilberg, T., Klungsøyr, O., Johansen, M.S., Urnes, O. & Karterud, S. Is treatment in a day hospital step-down program superior to outpatient individual psychotherapy for patients with personality disorders? 36 months follow-up of a randomized clinical trial comparing different treatment modalities. Psychotherapy Research, 22 (4), 426-41