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Castiello d'Antonio, A. (2008) John E. Helzer, Helena Chmura, Kraemer, Robert F. Krueger, Hans-Ulrich Wittchen, Paul J. Sirovatka & Darrel A. Regier (editors), Dimensional Approaches in Diagnostic Classification. Refining the Research Agenda for DSM-V. Washington, D.C.: American Psychiatric Publishing, 2008, pp. 136, $ 55.00 William E. Narrow, Michael B. First, Paul J. Sirovatka & Darrel A. Regier (editors), Age and Gender Considerations in Psychiatric Diagnosis. A Research Agenda for DSM-V. Washington, D.C.: American Psychiatric Publishing, 2006, pp. 362, $55.00. Psicoterapia e Scienze Umane 42:550-552