1. Massachusetts Institute of Technology, Cambridge, MA
2. Roth Cognitive Engineering, Brookline, MA
3. Agency for Health Care Research and Quality, Rockville, MD
4. Harvard-MIT Division of Health Sciences and Technology, Beth Israel Deaconess Medical Center, Boston, MA
5. Veteran's Administration National Center for Patient Safety, Ann Arbor, MI
6. Midwest Patient Safety Center of Inquiry, University of Cincinnati, Cincinnati, OH
7. Risk Management Foundation of the Harvard Medical Institutions, Inc., Harvard University, Cambridge, MA