Fig. 3

Survival curves after proton radiotherapy for subsets of patients. a Local progression free survival curves of patients with locally advanced pancreatic cancer (LAPC) at the major arterial invasion, CA celiac artery; SMA superior mesenteric artery; and CA and SMA. b Local progression free survival curves of patients with LAPC CA19-9 ≧ 231.9 or CA19-9 < 231.9. c Local progression free survival curves of patients with LAPC with and without anterior peripancreatic invasion. d Local progression free survival curves of patients with LAPC with and without complete scheduled concurrent chemotherapy