00674nam 2200157z- 450 9910712746603321(CKB)5470000002496707(EXLCZ)99547000000249670720230509c1976uuuu -u- -engHealth characteristics of persons with chronic activity limitation, United States-1974U.S. Department of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health StatisticsRockville, MdBOOK9910712746603321Health characteristics of persons with chronic activity limitation, United States-19743350993UNINA