*University of Rochester, Rochester, New York; †RAND Health, Santa Monica, California; ‡University of California San Diego, San Diego, California; §University of California Los Angeles, Los Angeles, California; ∥Veterans Affairs San Diego Healthcare System, San Diego, California; ¶Baruch College, City University of New York, New York; #National Opinion Research Center, Chicago, Illinois; **Community Health Solutions, Inc., Richmond, Kentucky; and ††Project HOPE Center for Health Affairs, Chevy Chase, Maryland, U.S.A.
Address correspondence and reprint requests to Susan E. Cohn, Associate Professor of Medicine, University of Rochester Medical Center, Infectious Diseases Unit, 601 Elmwood Avenue, Box 689, Rochester, New York 14642; e-mail: [email protected].
Manuscript received April 2, 2001; accepted September 12, 2001.