1 Division of Research and Optimal Patient Care, American College of Surgeons, Chicago, Illinois.
2 Department of Surgery, Emory University, Atlanta, Georgia.
3 Surgical Outcomes and Quality Improvement Center (SOQIC), Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
4 Northwestern Institute for Comparative Effectiveness Research in Oncology (NICER-Onc), Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.