00693nam 2200157z- 450 9910712445803321(CKB)5470000002493685(EXLCZ)99547000000249368520230509c1978uuuu -u- -engCardiovascular conditions of children 6-11 years and youths 12-17 years, United States, 1963-1965 and 1966-1970U.S. Department of Health, Education, and Welfare, Public Health Service, National Center for Health StatisticsHyattsville, MdBOOK9910712445803321Cardiovascular conditions of children 6-11 years and youths 12-17 years, United States, 1963-1965 and 1966-19703342151UNINA