Colorectal Neoplasms

• Hallym University Medical Center — Anyang, South Korea
• Kosin University College of Medicine — Busan, South Korea
• Dankuk University college of medicine hospital — Cheonan, South Korea
• National Cancer Center Hospital, National Cancer Center — Goyang, South Korea

• Jesse Brown VA Medical Center, Chicago, IL — Chicago, Illinois, United States
• VA Pittsburgh Healthcare System University Drive Division, Pittsburgh, PA — Pittsburgh, Pennsylvania, United States
• Michael E. DeBakey VA Medical Center, Houston, TX — Houston, Texas, United States

• Cancer Prevention and Research Institute, ISPO — Florence, FI, Italy

• Groupement Hospitalier Sud - Service de Médecine Gériatrique — Pierre-Bénite, France

Not specified

• University of Colorado — Aurora, Colorado, United States
• Yale Cancer Center — New Haven, Connecticut, United States
• Dana Farber Cancer Institute — Boston, Massachusetts, United States
• Washington University School of Medicine — St Louis, Missouri, United States

• Barbara Ann Karmanos Cancer Institute — Detroit, Michigan, United States
• Mayo Clinic — Rochester, Minnesota, United States
• University of North Carolina — Chapel Hill, North Carolina, United States
• University of Pennsylvania — Philadelphia, Pennsylvania, United States

• Harris County Hospital District — Houston, Texas, United States

• Indiana University Hospital — Indianapolis, Indiana, United States
• Beltway Surgery Center — Indianapolis, Indiana, United States

• Washington University website HeathStudy.wustl.edu — St Louis, Missouri, United States