Publisher:
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Washington : U.S. Government Printing Office, 2014. |
Phys. Desc.:
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1 online resource (iv, 211 pages) : illustrations
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Digital Content
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Series: | DHEW publication ; no. (PHS) 80-1458. -- Vital and health statistics. no. 21. |
Publisher:
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Hyattsville, Md. : U.S. Department of Health, Education, and Welfare, Public Health Service, Office of Research, Statistics, and Technology, National Center for Health Statistics, 1980. |
Phys. Desc.:
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1 online resource (xi, 53 pages)
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Digital Content
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Click for online content. |
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