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Colorectal Neoplasms
United States
North Carolina
Mass Screening
Colonoscopy
Occult Blood
Primary Health Care
Sigmoidoscopy
Periodicals
Risk Factors
Health Promotion
Risk
Cross-Sectional Studies
Time Factors
Internal Medicine
Questionnaires
Physician Patient Relations
Publishing
Research Peer Review
Physicians
Co-Publications
12
8
6
5
4
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