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Squamous cell carcinoma survival probabilities in dependence of proliferative activity. Kaplan–Meier curves depicting survival differences for OS (A and C) and DFS (B and D) in dependence of proliferative activity in squamous cell carcinomas (SQCC) with a 50% cut-off in the test cohort (A and B) as well as in the independent validation cohort (C and D).
