PO-1078: Long survivors' nature of pancreatic cancer treated with chemoradiotherapy using photon or proton. (November 2020) - Hiroshima, Y.; Fukumitsu, N.; Saito, T.; Numajiri, H.; Murofushi, K.; Ohnishi, K.; Mizumoto, M.; Nakai, K.; Ishikawa, H.; Okumura, T.; Sakurai, H.