Rectal Diseases

• West Alabama Research Inc. — Birmingham, Alabama, United States
• Drug Research and Analysis Corporation — Montgomery, Alabama, United States
• Lotus Clinical Research - Huntington Memorial Hospital — Pasadena, California, United States
• Accurate Clinical Trials — San Clemente, California, United States

• Radcliffe Infirmary NHS Trust — Oxford, England, United Kingdom

• Elisha Hospital — Haifa, Israel

• University of Colorado, Anschutz Cancer Pavillion — Aurora, Colorado, United States
• MD Anderson Cancer Center Orlando — Orlando, Florida, United States
• H. Lee Moffitt Cancer Center & Research Institute — Tampa, Florida, United States
• University of Washington, Seattle Cancer Care Center — Seattle, Washington, United States

• Mayo Clinic Cancer Center — Rochester, Minnesota, United States
• Memorial Sloan-Kettering Cancer Center — New York, United States
• Ludwig Institute for Cancer Research-Sydney Branch — Sydney, New South Wales, Australia

Not specified

• North Central Cancer Treatment Group — Rochester, Minnesota, United States

• University Hospital Dubrava — Zagreb, Croatia

Not specified

• Warren Grant Magnuson Clinical Center - NCI Clinical Studies Support — Bethesda, Maryland, United States
• Kimmel Cancer Center at Thomas Jefferson University - Philadelphia — Philadelphia, Pennsylvania, United States
• Fox Chase Cancer Center — Philadelphia, Pennsylvania, United States
• Vanderbilt-Ingram Cancer Center at Vanderbilt Medical Center — Nashville, Tennessee, United States