Calcium supplements for the prevention of colorectal adenomas. Calcium Polyp Prevention Study Group.
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G. Beck | J. Baron | R. Sandler | J. Bond | J. Mandel | R. Rothstein | R. Haile | D. Snover | R. Summers | M. Beach | E. Greenberg | R. V. van Stolk | M. Beach | van Stolk Ru