U. S. Department of Health and Human Services, Public Health Service 1976 Vital statistics of the United States 1974 ; vol. 2

part B

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U.S. Department of Health, Education, and Welfare, Public Health Service, Health Services and Mental Health Administration, National Center for Health Statistics , For sale by the Superintendent of Documents, U.S. Government Printing Office 1970 Public Health Service publication no. 2094 , Public health bibliography series 82

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U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Center for Health Statistics : [1968] Public Health Service publication no. 1509

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U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Center for Health Statistics : For sale by the Supt. of Docs., U.S. G.P.O. [1966] Public Health Service publication no. 1509

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