1 Surgical Outcomes and Quality Improvement Center, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA. Electronic address: wilhelmina.schaefer@northwestern.edu.
2 Surgical Outcomes and Quality Improvement Center, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Department of Surgery, Northwestern Memorial Hospital, Chicago, IL, USA. Electronic address: Jonah.Stulberg@nm.org.