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Event‐free survival. (A) Event‐free survival (EFS) for all 92 eligible patients. The 2‐year EFS was 76.1% in the 92 eligible patients. (B) EFS for 19 interim PET‐positive patients. The 2‐year EFS was 68.4% in the 19 interim PET‐positive patients. (C) EFS for 73 interim PET‐negative patients. The 2‐year EFS was 78.1% in 72 interim PET‐negative patients.
