No abstract available
MeSH terms
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Aging
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Animals
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Animals, Newborn
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Escherichia coli / growth & development*
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Escherichia coli / immunology
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Female
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Germ-Free Life
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Immunization
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Intestines / microbiology*
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Kinetics
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Lactobacillus / growth & development*
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Lactobacillus / immunology
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Male
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Mice
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Mice, Inbred C3H
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Pregnancy
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Shigella flexneri / growth & development*
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Shigella flexneri / immunology
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Stomach / microbiology*
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Time Factors