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NCI Dictionary of Cancer Terms


disease-free survival  listen  (dih-ZEEZ ... ser-VY-vul)

  In cancer, the length of time after primary treatment for a cancer ends that the patient survives without any signs or symptoms of that cancer. In a clinical trial, measuring the disease-free survival is one way to see how well a new treatment works. Also called DFS, relapse-free survival, and RFS.