Fig. 7From: A nomogram for predicting survival of head and neck mucosal melanomaKaplan–Meier curves for OS (a, b), DFS (c, d), DMFS (e, f), and LRRFS (g, h) of patients in the low-, intermediate- and high-risk groups. The risk groups were stratified according to the 33% and 66% of total risk scores in the primary (a, c, e, g) and validation cohorts (b, d, f, h)Back to article page