00311nam a22000737a 4500245013300000260006700133300001000200650002700210  aCurrent estimates from the health interview survey :bUnited States-July 1962-1963 /cUS Dept. of Health, Education and Welfare   aWashington, DC :bNational Center for Health Statisticsc1964.  a40 p.  aHealth statisticsvUSA