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(A) Progression-free survival (PFS) by clinical exam response (log-rank test, P value = 0.14). (B) PFS by computed tomography (CT) response (log-rank test, P value = 0.56). (C) PFS by positron emission tomography (PET) response (log-rank test, P value = 0.0002). (D) PFS by PET-CT categories (log-rank test, P value < .0001). CR, complete response; non-CR, noncomplete response.
