Auteur: Erik Simonsen

Thomas A. Widiger, Ph.D., is professor in the Department of Psychology at the University of Kentucky in Lexington, Kentucky.Erik Simonsen, M.D., is Chief Psychiatrist at Roskilde County Hospital Fjorden and Medical Director at the Institute of Personality Theory and Psychopathology in Roskilde, Denmark.Paul J. Sirovatka, M.S., is Associate Director for Research at the American Psychiatric Institute for Research and Education and the Division of Research at the American Psychiatric Association in Washington, D.C.Darrel A. Regier, M.D., M.P.H., is Executive Director of the American Psychiatric Institute for Research and Education and Director of the Division of Research at the American Psychiatric Association in Washington, D.C.