CONKO-006: a randomised double-blinded phase IIb-study of additive therapy with gemcitabine + sorafenib/placebo in patients with R1 resection of pancreatic cancer : final results - Sinn, Marianne; Liersch, Torsten; Riess, Hanno; Gellert, Klaus; Stübs, Patrick; Waldschmidt, Dirk Thomas; Lammert, Frank; Maschmeyer, Georg; Bechstein, Wolf Otto; Bitzer, Michael; Denzlinger, Claudio; Hofheinz, Ralf-Dieter; et al. (European journal of cancer, 2020)