Richard Schottenfeld, M.D.
Department of Psychiatry
Yale University School of Medicine
New Haven, Connecticut, United States and
Mahmud Mazlan, M.D.
Substance Abuse Center
Perry F. Renshaw, M.D., Ph.D.
Brain Imaging Center
Belmont, Massachusetts, United States and
In Kyoon Lyoo, M.D., Ph.D.
Department of Psychiatry and Behavioral Sciences
Seoul National University Medical School
Seoul, South Korea