1. Division of Genetics, Brigham and Women's Hospital, Boston, Massachusetts.
2. Division of Genetics, Baystate Medical Center, Tufts University School of Medicine, Springfield, Massachusetts.
3. Department of Medicine and Center for Bioethics, Brigham and Women's Hospital, Boston, Massachusetts.
4. Harvard Medical School, Boston, Massachusetts.
5. Departments of Neurology and Medicine (Genetics), Boston University School of Medicine, Boston, Massachusetts.
6. Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts.
7. Center for the Evaluation of Value and Risk in Health, Tufts Medical Center, Institute for Clinical Research and Health Policy Studies, Boston, Massachusetts.
8. Pharmaceutical Outcomes Research and Policy, Department of Pharmacy, Institute for Public Health Genetics, University of Washington, Seattle, Washington.