1 Department of Human Structure and Repair, Ghent University, Belgium.
2 Department of Human Structure and Repair, Ghent University, Belgium; Department of Gastrointestinal Surgery, Ghent University Hospital, Ghent, Belgium.
3 Department of Human Structure and Repair, Ghent University, Belgium; Department of Gastrointestinal Surgery, Ghent University Hospital, Ghent, Belgium. Electronic address: wouter.willaert@ugent.be.