Efficacy, effectiveness, variations, and quality : boundary-crossing research /
Robert H. Brook, Kathleen N. Lohr ; supported by the U.S. Department of Health and Human Services.
- 13 pages ; 28 cm
- A Rand note ; N-3368-HHS .
- Rand note ; N-3368-HHS .
Includes bibliographical references.
Hadiah
Medical care--Utilization--United States. Health surveys--United States.