@article{Swiss Medical Weekly_2021, title={Supplementum 253: Abstracts of the annual congress of the Swiss Society of Gastroenterology, Swiss Visceral Surgeons, Swiss Association for the Study of the Liver and Swiss Society of Endoscopy Nurses and Associates}, volume={151}, url={https://smw.ch/index.php/smw/article/view/3067}, DOI={10.57187/SMW.2021.w3006}, number={3536}, journal={Swiss Medical Weekly}, author={Swiss Medical Weekly}, year={2021}, month={Sep.}, pages={w30060} }