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Infants
Newborn Infant
Environmental Exposure
Respiratory Tract Diseases
Bronchitis
Lead Poisoning, Nervous System, Childhood
Substance-Related Disorders
Socioeconomic Factors
Cohort Studies
Risk Factors
Time Factors
Urban Population
Regression Analysis
Child Development
Psychomotor Performance
Breast Feeding
Air Pollution, Indoor
Infant Food
Iron
Co-Publications
7
5
3
2
1
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