1. Stanford Mood Disorders Center, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California
2. Department of Psychiatry, University of Iowa, Iowa City
3. Office for Aging Research and Health Services, University of Rochester Medical Center, Rochester, New York4Center for the Study and Prevention of Suicide, Department of Psychiatry, University of Rochester, Rochester, New York
4. Department of Psychology, Florida State University, Tallahassee