Premise: Leukemia . In children under 15 , the five-year survival rate is greater than 60 to 85 % , depending on the type of leukemia . In children with acute leukemia who are cancer-free after five years , the cancer is unlikely to return . It is the most common type of cancer in children , with three quarters of leukemia cases in children being the acute lymphoblastic type .
Hypothesis: Leukemia is unable to affect children.
Label: CONTRADICTION