ALBERT P. WILLIAMS,

The RAND Corporation, Santa Monica, California

JAMES B. WYNGAARDEN,^* Associate Vice Chancellor for Health Affairs,

Duke University, and Foreign Secretary, National Academy of Sciences and Institute of Medicine, Washington, D.C.

RICHARD A. RETTIG, Study Director

STANLEY W. AMMONS, JR. Program Officer

HOLLY DAWKINS, Research Assistant

THELMA L. COX, Project Assistant

NANCY DIENER, Financial Associate

RUTH ELLEN BULGER, Director, Division of Health Sciences Policy