1. Department of Diagnostic and Interventional Radiology; University Hospital of Lausanne; Rue du Bugnon 46, 1011 Lausanne Switzerland
2. University Center of Legal Medicine Lausanne-Geneva; University of Lausanne; Rue du Bugnon 21, 1011 Lausanne Switzerland
3. Department of Gastrointestinal Surgery; Ghent University Hospital; De Pintelaan 185, 9000 Ghent Belgium
4. NVT GmbH; Lotzenäcker 17, 72379 Hechingen Germany
5. Fumedica AG; Luzernerstrasse 91, 5630 Muri AG Switzerland