Somatic alterations in circulating cell-free DNA of oesophageal carcinoma patients during primary staging are indicative for post-surgical tumour recurrence

Helen Pasternack, Jana Fassunke, Patrick Sven Plum, Seung Hun Chon, Daniel Alexander Hescheler, Asmae Gassa, Sabine Merkelbach-Bruse, Christiane Josephine Bruns, Sven Perner, Michael Hallek, Reinhard Büttner, Elfriede Bollschweiler, Arnulf Heinrich Hölscher, Alexander Quaas, Thomas Zander, Jonathan Weiss, Hakan Alakus^*