OC-0018: Chemoradiation-induced altered profile of PD-L1 and CD8+ TILs indicated prognosis in rectal cancer. (May 2017) - Lim, Y.J.; Koh, J.; Kim, S.; Jeon, S.R.; Chie, E.K.; Kim, K.; Kang, G.H.; Han, S.W.; Kim, T.Y.; Jeong, S.Y.; Park, K.J.; Wu, H.G.