1. Department of Gastroenterology, Universitätsklinikum Augsburg, Germany
2. Regensburg Medical Image Computing (ReMIC), Ostbayerische Technische Hochschule Regensburg (OTH Regensburg) – Germany
3. Regensburg Center of Health Sciences and Technology, OTH Regensburg – Germany
4. Department of Computing, Federal University of São Carlos – Brazil
5. Department of Computing, São Paulo State University – Brazil
6. Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands