William L. White, M.A., is a Senior Research Consultant at Chestnut Health Systems/Lighthouse Institute where he pursues his interests in clinical research, training and writing. He has authored more than 80 articles and monographs and 10 books, including Slaying the Dragon: The History of Addiction Treatment and Recovery in America. He has worked in the addiction's field for more than 30 years and has been conducting training in psychiatric and addiction treatment settings on the topics of dual diagnosis and multiple-problem clients/families for the past 16 years.
Email to: bwhite@chestnut.org

David L. Loveland, Ph.D., is the Director of Research at Fayette Companies, Peoria, Illinois. David's research interests include program evaluation of community mental health and addiction treatment services and the development and evaluation of consumer-centered services. Prior to completing his doctorate in community psychology at Michigan State University, David worked as a clinician and program supervisor in community mental health, chemical dependence, corrections, and dual diagnosis treatment programs for eight years.
Email to: lovelandd@earthlink.net

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Patrick Corrigan, Psy.D., is Professor of Psychiatry at the University of Chicago where he directs the Center for Psychiatric Rehabilitation, a clinical, research, and training program for persons with severe mental illness and their families. Dr. Corrigan is also principal investigator and director of the Chicago Consortium for Stigma Research, an NIMH-funded collaboration among six Chicago academic institutions examining the stigma of mental illness. He has published more than 100 articles as well as seven books including Don't Call Me Nuts: Coping with the Stigma of Mental Illness with Bob Lundin. He is also editor-in-chief of the journal, Psychiatric Rehabilitation Skills. More can be learned about Dr. Corrigan at: www.ucpsychrehab.org and www.stigmaresearch.org.

Mark D. Godley, Ph.D., is Director of Chestnut Health System's Lighthouse Institute. With more than 60 research staff working on 15 research and training projects the Lighthouse Institute is one of the largest applied research and training units housed within a community-based behavioral health organization in the country. Dr. Godley's research is primarily focused on the maintenance of treatment effects for adolescents and adults with substance use disorders. He is the principal investigator of the NIAAA funded study of Assertive Aftercare for Adolescents and a co-investigator of the NIDA funded "Early Re-Intervention protocol for adults with substance use disorders. Since 1975 he has worked a clinician, program director, research scientist, and research administrator in the substance abuse field.
Email to: MGodley@Chestnut.org

Russell J. Hagen, M.A., is Chief Executive Officer of Chestnut Health Systems, a provider of a comprehensive array of behavioral health care services including mental health, substance abuse, employee assistance programs and applied behavioral health care research. Russ has 27 years of experience as both a direct service provider and administrator. Russ's interests include knowledge transfer from research to practice while improving the quality, effectiveness and efficiency of care.