Joan F. Van Nostrand ... [et al.], Division of Health Resources Utilization Statistics
Dept. of Health, Education, and Welfare, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics , for sale by the Supt. of Docs., U.S. Govt. Print. Off.
1979
Vital and health statistics
Series 13, Data from the national health survey ; no. 43 , DHEW publication
no. (PHS) 79-1974
pbk.
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