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Disease specific survival curves of patients with spindle cell melanoma compared according to (A) age, (B) sex, (C) pathological grade, (D) AJCC stage, (E) ethnicity and (F) T stage, (G) tumor location, (H) M stage, (I) treatment and (J) SEER stage. The log-rank test was utilized to compare curves. AJCC, American Joint Committee on Cancer; T, tumor; N, node; M, metastasis; SEER, Surveillance, Epidemiology and End Results.
