Age patterns in medical care,illness and disability.United Statesf 1968-1969.
Card's contents:191,757 AGE Age patterns in medical care,illness and disability.United Statesf 1968-1969. Statistics on the use of medical services and the extent of illness and disability in the population by age, . .. Rockville 1972 U.S.Department of Health, Education,and Welfare.Public Health Service 4° s. IV, 88, ilustr. Vital and Health Statistics. Data from the National Health Survey Ser. 10, nr 70.