Bloom, Barbara, 1950-
[Hyattsville, Md.] : [U.S. Dept. of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology], [1981]
1981
Hudson, Bettie L.
[Hyattsville, Md.] : [U.S. Dept. of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics], [1981]
1981