RATIONALE: Studying samples of blood from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. PURPOSE: This study is looking at genetic susceptibility to cancer and interactions between genes and the environment in patients with cancer in East Anglia, Trent, or West Midlands of the United Kingdom.
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Acquisition of epidemiological information and biological material
Identification of novel cancer susceptibility genes
Estimation of the age and sex-specific risks associated with variants in predisposition genes
Evaluation of interactions between polymorphisms in predisposition genes and potential lifestyle risk factors