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Risk Factors
Prospective Studies
Cohort Studies
Incidence
Randomized Controlled Trials
Proportional Hazards Models
Risk
Multivariate Analysis
Risk Assessment
Cardiovascular Diseases
Hypertension
Myocardial Infarction
United States
Physicians
beta Carotene
Aspirin
Antioxidants
Questionnaires
Case Control Studies
Double-Blind Method
Co-Publications
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