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NCI Dictionary of Cancer Terms


genome-wide association study  listen  (JEE-nome ... uh-SOH-see-AY-shun STUH-dee)

  A study that compares DNA markers across the genome (the complete genetic material in a person) in people with a disease or trait to people without the disease or trait. These studies may uncover clues to help prevent, diagnose, and treat disease. Also called GWAS.