Fig. 3. (A) LRR, (B) DM, (C) PAR rates in SCC-Ag ≥4 ng/mL and SCC-Ag <4 ng/mL arms.
DM, distant metastasis; LRR, locoregional recurrence; PAR, para-aortic recurrence; SCC-Ag, squamous-cell carcinoma antigen.
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