1. Institute of Pathology and Neuropathology Eberhard‐Karls‐University Tuebingen and National Center for Pleura and Peritoneum University of Tuebingen Tuebingen Germany
2. Service of Clinical Pathology Institute of Pathology Lausanne University Hospital Lausanne Switzerland
3. Peritoneal Malignancy Institute Basingstoke and North Hampshire Hospital Basingstoke UK
4. Institute of Pathology University Caen and Réseau National des Tumeurs Rares du Péritoine (RENAPE) Caen France
5. Institute of Pathology Paracelsus Medical University Salzburger Landeskliniken (SALK) Salzburg Austria
6. Department of Surgery Paracelsus Medical University Salzburg Austria
7. Department of Pathology Odense University Hospital Odense Denmark
8. Odense PIPAC Center (OPC) and Odense Pancreas Center (OPAC) Odense University Hospital Odense Denmark
9. Department of Surgery HPB and Upper GI Section Odense University Hospital Odense Denmark
10. Institute of Clinical Research University of Southern Denmark Odense Denmark