Toward a 21st century health system : the contributions and promise of prepaid group practice /
edited by Alain C. Enthoven, Laura A.Tollen and foreword by William L. Roper.
- San Francisco : Jossey-Bass, 2004.
- xlix, 284p.
includes bibliographical references and index.
0787973092
Managed care plans --medical care --United States. Health maintenance organization --United States.