Affiliation: | 1. Division of Research and Optimal Patient Care, American College of Surgeons, Chicago, IL, USA 2. Department of Surgery, Pritzker School of Medicine, University of Chicago, Chicago, IL, USA 3. Department of Surgery, University of California, Los Angeles (UCLA) and VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA 4. Northwestern Institute for Comparative Effectiveness Research in Oncology, Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA 5. Surgical Outcomes and Quality Improvement Center, Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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