1. Institute of Anatomy, Center of Clinical Anatomy Kiel University Kiel Germany
2. Colorectal Surgery Unit, General Surgery Department Marqués de Valdecilla University Hospital Santander Spain
3. Valdecilla Biomedical Research Institute (IDIVAL) Santander Spain
4. Department of Colorectal Surgery University Hospitals of Derby and Burton NHS Foundation Trust Derby UK
5. School of Medicine, Royal Derby Hospital University of Nottingham Derby UK
6. Department of Visceral, Transplant, Thoracic, and Vascular Surgery University Hospital of Leipzig Leipzig Germany
7. Section Coloproctology, Department of Surgery Friedrich‐Alexander University Erlangen Erlangen Germany