1. Department of Health Care, RAND Corporation, Santa Monica, California
2. West Los Angeles Veterans Administration, Los Angeles, California
3. Department of Economics, Sociology, and Statistics, RAND Corporation, Pittsburgh, Pennsylvania
4. Department of Health Policy and Administration, Pennsylvania State University, University Park
5. Ministry of Health, Wellington, New Zealand
6. Precision Driven Health, Auckland, New Zealand
7. Department of Health Care, RAND Corporation, Pittsburgh, Pennsylvania
8. Department of Health Care, RAND Corporation, Boston, Massachusetts
9. Department of Research Programming, RAND Corporation, Santa Monica, California