1. Intraoperative Performance Analytics Laboratory, Department of General Surgery, Lenox Hill Hospital, New York, NY, USA
2. Institute for Spine and Scoliosis, Lawrenceville, NJ, USA
3. Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
4. Department of General Surgery, North Shore University Hospital, Manhasset, NY, USA