@periodical{UBHD-67811949, title={Gastrointestinal tumors}, publisher={Karger}, address={Basel}, year={September 2013-}, pages={Online-Ressource}, language={eng}, issn={2296-3766}, note={Gesehen am 02.11.2020}, doi={10.1159/issn.2296-3774}, url={https://ezb.ur.de/detail.phtml?bibid=UBHE&jour_id=201754}, library={UB}, }