F Lordick1, M Nilsson2, T Leong3. 1. Department of Oncology, Gastroenterology, Hepatology, Pulmonology, and Infectious Diseases, University Cancer Center Leipzig (UCCL), University of Leipzig Medical Center, Leipzig, Germany. Electronic address: florian.lordick@medizin.uni-leipzig.de. 2. Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm; Department of Upper Abdominal Diseases, Karolinska University Hospital, Stockholm, Sweden. 3. Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia; The Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia.