00594nam 2200157z- 450 9910712703203321(CKB)5470000002497146(EXLCZ)99547000000249714620230509c1964uuuu -u- -engBed disability among the chronically limited, United States - July 1957-June 1961U.S. Department of Health, Education, and Welfare, Public Health ServiceWashington, D.CBOOK9910712703203321Bed disability among the chronically limited, United States - July 1957-June 19613336873UNINA