Fig. 7
From: A nomogram for predicting survival of head and neck mucosal melanoma
Kaplan–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)