1. Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA,
2. Division of Colon and Rectal Surgery, Mayo Clinic, Rochester, MN, USA
3. Division of General Thoracic Surgery, Mayo Clinic, Rochester, MN, USA
4. National Cancer Database, American College of Surgeons, Chicago, IL, USA
5. Department of Surgery, Mayo Clinic, Scottsdale, AZ, USA
6. Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
7. Health Information Management Services, Mayo Clinic, Rochester, MN, USA