Fig. 1From: Role of postoperative radiotherapy in dermatofibrosarcoma protuberans: a propensity score-matched analysisKaplan–Meier analysis of DFS according to (a) age (50 vs < 50), (b) histological subtype (ordinary, fibrosarcoma, and myxoid), and (c) tumor size (< 5 cm vs ≥5 cm), and (d) margin width (< 2 cm vs ≥2 cm)Back to article page