TY  - BOOK
ED  - United States.
TI  - Medicare: health insurance for the aged
U1  - 368.30973021 
PY  - 1969///
CY  - Washington, D.C.
PB  - United States Department of Health, Education, and Welfare, Social Security Administration
KW  - Hospital utilization
KW  - United States
KW  - Statistics
KW  - Medicare
KW  - Hospitals
KW  - utilization
N1  - Section 3 :  Participating provider
ER  -