1. Division of Colon and Rectal Surgery, Department of Surgery, Lenox Hill Hospital, New York, NY, USA
2. Department of Surgery, Brookdale University and Hospital Medical Center, Brooklyn, NY, USA
3. Department of colon and rectal surgery, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
4. Gastroenterological Surgery, Osaka University, Suita, Osaka, Japan
5. Novartis Pharmaceuticals Corp, Morris Plains, NJ, USA
6. Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA