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Statistics in Medicine|June 1, 1989
The control of confounding by intermediate variablesJ Robins
The American Journal of Gastroenterology|January 26, 2005
Calcium supplements to prevent colorectal adenomasRobert S Sandler
Gastroenterology|October 22, 2009
How will we address the crucial questions facing our field?Robert S Sandler
Gastroenterology Clinics of North America|December 1, 1996
Epidemiology and risk factors for colorectal cancerR S Sandler
Journal of Clinical Gastroenterology|April 1, 1984
Has primary gastric lymphoma become more common?R S Sandler
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