Basic Information and Risk Factors:
https://www.cdc.gov/cancer/colorectal/basic_info/index.htm
www.cdc.gov/cancer/colorectal/basic_info/risk_factors.htm
https://www.cancer.org/cancer/colon-rectal-cancer.html
Information about Screening and Fears of Screening:
https://www.cdc.gov/cancer/colorectal/basic_info/screening/index.htm
https://www.cdc.gov/cancer/colorectal/basic_info/stories.htm
www.prevention.com/health/health-concerns/getting-over-colonoscopy-fears