Fig. 4
From: A nomogram for predicting survival of head and neck mucosal melanoma
Calibration plots of the nomogram to predict the 3- and 5-year OS and DFS in the primary (a, c, e, g) and validation cohorts (b, d, f, h). Nomogram-estimated 3- or 5-year OS (a–d) and DFS (e–h) were plotted on the x-axis; the observed OS and DFS were plotted on the y-axis. Dashed lines along the 45-degree line represented that the predicted probabilities are equal to the actual probabilities