1. Center for Surgical Outcomes Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, Ohio
2. Department of Pediatric Surgery, Nationwide Children’s Hospital, Columbus, Ohio
3. Departments of Biomedical Informatics and Obstetrics & Gynecology, The Ohio State University College of Medicine, Columbus, Ohio
4. Division of Pediatric Surgery, Department of Surgery, Washington University School of Medicine, St Louis, Missouri
5. Section of Pediatric Surgery, Department of Surgery, University of Chicago Medicine and Biologic Sciences, Chicago, Illinois
6. Division of Pediatric Surgery, Department of Surgery, University of Michigan School of Medicine, Ann Arbor
7. Division of Pediatric Surgery, Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
8. Division of Pediatric Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
9. Division of Pediatric Surgery, Department of Surgery, Medical College of Wisconsin, Milwaukee
10. Division of Pediatric Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis
11. Division of Pediatric Surgery, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
12. Division of Pediatric Surgery, Department of Surgery, University of Louisville School of Medicine, Louisville, Kentucky