No abstract available
MeSH terms
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Case-Control Studies
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Commerce
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Disease Outbreaks / statistics & numerical data*
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Drug Resistance, Multiple, Bacterial
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Finland / epidemiology
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Food Contamination / statistics & numerical data*
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Food Microbiology
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Humans
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Incidence
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Lactuca / microbiology*
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Population Surveillance*
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Risk Assessment / methods
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Risk Factors
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Salmonella Food Poisoning / epidemiology*
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Salmonella Food Poisoning / microbiology
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Salmonella typhimurium / classification
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Salmonella typhimurium / isolation & purification
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Spain / epidemiology