1. Wake Forest School of Medicine, Department of Surgery, Winston-Salem, NC, USA
2. Wake Forest Institute for Regenerative Medicine, Department of Surgery, Winston-Salem, NC, USA
3. King Khalid University Hospital, Department of Surgery, Riyadh, Saudi Arabia
4. Universidad San Pablo CEU, Escuela de Medicina, Madrid, Spain
5. School of Experimental Medicine, University of Pavia, Pavia, Italy