Nevada Cancer Institute, Las Vegas, Nevada, United States
University Hospital Medical Center - SUNY at Stony Brook, Stony Brook, New York, United States
Oklahoma University Medical Center, Oklahoma City, Oklahoma, United States
Mount Sinai School of Medicine, New York, New York, United States
Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, United States
Endoscopic Microsurgery Associates, PA, Towson, Maryland, United States
Clinical Research Associates, Huntsville, Alabama, United States
Rockford Gastroenterology Associates Ltd., Rockford, Illinois, United States
Netherlands Cancer Institute- Antoni Van Leeuwenhoek Hospital, Amsterdam, Netherlands
Gartnavel General Hospital, Glasgow, United Kingdom
Indiana University, Indianapolis, Indiana, United States
CTRC, San Antonio, Texas, United States
Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States
Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States