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Research Article Free access | 10.1172/JCI103437
Department of Health, Education and Welfare, Public Health Service, National Institutes of Health, National Institute of Allergy and Infectious Diseases and National Cancer Institute, Bethesda, Md.
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Department of Health, Education and Welfare, Public Health Service, National Institutes of Health, National Institute of Allergy and Infectious Diseases and National Cancer Institute, Bethesda, Md.
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Department of Health, Education and Welfare, Public Health Service, National Institutes of Health, National Institute of Allergy and Infectious Diseases and National Cancer Institute, Bethesda, Md.
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Published March 1, 1957 - More info