1. Department of Surgery, Radboud University Medical Centre , Nijmegen , the Netherlands
2. Radboud University Medical Centre, IQ Healthcare , Nijmegen , the Netherlands
3. Department of Operating Rooms, Radboud University Medical Centre , Nijmegen , the Netherlands
4. Physiotherapy, Centre for Physiotherapy and Rehabilitation , Heerhugowaard , the Netherlands
5. Department of Surgery, Northwest Clinics , Alkmaar , the Netherlands