Brunner, TB; Seufferlein, T. Chemoradiotherapy, the backbone of radiotherapy in gastrointestinal oncology. Best Pract Res Clin Gastroenterol. 2016; 30(4):511-3 Doi: 10.1016/j.bpg.2016.08.004 Web of Science PubMed FullText FullText_MUG