1. Departments of Psychiatry and Medicine (P.T.P., J.K., T.R.C., T.V., D.A.D., T.K., S.C.B., M.H.T.), Obesity Research Center, University of Cincinnati–Genome Research Institute, Cincinnati, Ohio 45237
2. Department of Physiology (J.K.), Monash University, Melbourne 3800, Australia
3. Center for Psychosomatic Medicine (U.C.), D-83209 Prien, Germany
4. German Institute of Human Nutrition (H.J.R., M.M., A.F.H.P., C.K., M.O.W., J.S.), 10551 Nuthetal, Germany
5. Department of Preventive Medicine (C.K.), University of Southern California, Los Angeles, California 90089
6. Department of Gastroenterology (B.O.), University Hospital, D-81377 Munich, Germany