1 Department of Surgery, University of Pennsylvania, Philadelphia, Pennsylvania. Electronic address: maria.altieri@pennmedicine.upenn.edu.
2 Department of Surgery, Hershey School of Medicine, Penn State University, Hershey, Pennsylvania.
3 Department of Surgery, Weill Cornell Medicine, New York, New York.
4 Department of Surgery, Beaumont Hospital, Bloomfield Hills, Michigan.
5 Department of Surgery, Gundersen Lutheran Medical Center, La Crosse, Wisconsin.
6 Department of Surgery, University of Oklahoma College of Community Medicine, Tulsa, Oklahoma; Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.
7 Department of Surgery, Stanford School of Medicine and VA Palo Alto Health Care System, Palo Alto, California.