TI - PRevalence of selected impairments, united states, july 1963-june 1965. PT - JOUR DP - 1969 TA - Archives of Internal Medicine pages = {740}, VI - 123 IP - 6 AID - 10.1001/archinte.1969.00300160130049 [doi] 4100 - http://dx.doi.org/10.1001/archinte.1969.00300160130049 SO - Archives of Internal Medicine June 1, 1969 123(6):740