Medicare :  health insurance for the aged 1966 
 Medicare.  1966  Section 2  Enrollment 

 - Washington, D.C. :  United States Department of Health, Education, and Welfare, Social Security Administration,  1966 
 - Various pagings ;  31 cm. 
 - Office of research and statistics .
<br/><br/>Section 2 : Enrollmen 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hospital utilization--United States--Statistics<br/>Medicare--Statistics<br/>Hospitals--utilization--United States<br/>Medicare--Statistics
<br/><br/><label>Dewey Class. No.: </label>368.30973021