Wei EK, Giovannucci E, Wu K, Rosner B, Fuchs CS, Willett WC, et al. Comparison of risk factors for colon and rectal cancer. Int J Cancer 2004 Jan 20;108(3):433-42 Abstract available at http://www.ncbi.nlm.nih.gov/pubmed/14648711.
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- FHS2: What is the strength of association between family history and colorectal cancer risk and how do these associations vary by, number of affected relatives and degree of relatedness and age and sex of affected relatives and by the age and sex of the at-risk person?