No abstract available
MeSH terms
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Communicable Diseases / epidemiology*
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Czechoslovakia
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Diphtheria / epidemiology
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Dysentery, Bacillary / epidemiology
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Hepatitis, Viral, Human / epidemiology
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Humans
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Measles / epidemiology
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Poliomyelitis / epidemiology
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Salmonella Infections / epidemiology
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Scarlet Fever / epidemiology
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Tetanus / epidemiology
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Typhoid Fever / epidemiology
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Whooping Cough / epidemiology