Fig. 1From: Carbon-ion radiotherapy for hepatocellular carcinoma with major vascular invasion: a retrospective cohort studyOS and PFS curves after carbon-ion radiotherapy. Legend: OS (full line) and PFS (broken line) curves after carbon-ion radiotherapy were determined using the Kaplan–Meier method. Abbreviations: OS, overall survival; PFS, progression-free survivalBack to article page