No abstract available
MeSH terms
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Child
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Child Welfare / statistics & numerical data
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Child Welfare / trends
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Child, Preschool
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Environmental Monitoring / statistics & numerical data*
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Environmental Pollution / adverse effects
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Environmental Pollution / analysis
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Female
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Health Surveys
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Humans
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Infant
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Infant Mortality
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Male
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Morbidity*
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Risk Factors
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Rural Population
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Russia
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Urban Population