TY  - BOOK
AU  - Brook,Robert H.
ED  - Research and Development Corporation, 
ED  - United States.
TI  - Geographic variations in the use of services: do they have any clinical significance? 
T2  - A Rand note
PY  - 1991///
CY  - Santa Monica, California
PB  - Rand Corporation
KW  - Medical care
KW  - Utilization
KW  - United States.
KW  - United States
KW  - Cost control.
KW  - Clinical indications
N1  - Includes bibliographical references
ER  -