Adjuvant radiotherapy and chemoradiation with gemcitabine after R1 resection in patients with pancreatic adenocarcinoma - Habermehl, Daniel; Brecht, Ingo; Bergmann, Frank; Rieken, Stefan; Werner, Jens; Büchler, Markus W.; Springfeld, Christoph; Jäger, Dirk; Debus, Jürgen; Combs, Stephanie (BioMed Central, 2015)