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China
Smoking
Respiration Disorders
Vascular Diseases
Esophageal Neoplasms
Cardiovascular Diseases
Lung Neoplasms
Neoplasms
Risk Factors
Causes of Death
Urban Health
Rural Health
Age of Onset
Rural Population
Sex Distribution
Urban Population
Logistic Models
Risk Assessment
Prevalence
Case Control Studies
Co-Publications
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