1. Mark W. Friedberg is an associate natural scientist with the RAND Corporation in Santa Monica, California.
2. Peter S. Hussey is a policy researcher with the RAND Corporation in Arlington, Virginia.
3. Eric C. Schneider ( ) is senior scientist and director of the Boston office of the RAND Corporation, and an associate professor in the Division of General Medicine and Primary Care at Brigham and Women’s Hospital and the Department of Health Policy and Management, Harvard School of Public Health, in Boston, Massachusetts.