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1Published 1967“...U.S. Department of Health, Education, and Welfare, Public Health Service, National Center...”
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2Published 1963“...U.S. Department of Health, Education, and Welfare, Public Health Service, National Center...”
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3Published 1959“...U.S. Department of Health, Education and Welfare, Public Health Service, National Center for Health...”
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4Published 1976“...U.S. Department of Health, Education, and Welfare, Public Health Service, Health Resources...”
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5Published 1970“...U.S. Department of Health, Education, and Welfare, Public Health Service, Health Services...”
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