1. Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.
2. Department of Plastic Surgery, Maastricht University Medical Centre plus (MUMC+), Maastricht, The Netherlands.
3. Department of General, Visceral and Transplantation Surgery, RWTH Aachen University, Aachen, Germany.
4. Department of Surgery, Maastricht University Medical Centre plus (MUMC+), Maastricht, The Netherlands.