A randomized multicentre phase II trial comparing adjuvant therapy in patients with Interferon alpha-2b and 5-FU alone or in combination with either external radiation treatment and cisplatin (CapRI) or radiation alone regarding event-free survival - CapRI-2 - Märten, Angela; Schmidt, Jan; Ose, Jennifer; Harig, Sabine; Abel, Ulrich; Münter, Marc; Jäger, Dirk; Friess, Helmut; Mayerle, Julia; Adler, Guido; Seufferlein, Thomas; Greß, Thomas; et al. (BMC cancer, 2009)