Fig. 1
From: Respiratory-gated proton beam therapy for intrahepatic cholangiocarcinoma without fiducial markers
Kaplan–Meier curves of overall survival (OS). Kaplan–Meier estimates of OS, progression-free survival (PFS), and local control (LC) rates for patients. The median follow-up period was 27.1 (range, 4–69) months. The median OS period was 42 months. The 2-year OS, PFS, and LC rates were 62%, 33%, and 66%, respectively