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Lithuania
Questionnaires
Smoking
Case Control Studies
Atomic Spectrophotometry
Respiratory Function Tests
Age Factors
Risk Factors
Rural Population
Odds Ratio
Logistic Models
Sex Factors
Marital Status
Tobacco Smoke Pollution
Stomach Neoplasms
Sneezing
Conjunctivitis, Allergic
Respiration Disorders
Respiratory Sounds
Diet
Co-Publications
4
3
2
1
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