PO-1070: Effect of surgery in locally advanced esophageal cancer after chemoradiotherapy. (November 2020) - Alda Bravo, I.; Fernandez Alonso, S.; Alarza Cano, M.; Pérez-Escutia, M.Á.; D'Ambrossi, R.; Peña, M.C.; Colmenero, M.; Pérez-Regadera, J.F.