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NEJM199901143400204
NEJM199901143400204
http://dx.doi.org/10.1056/NEJM199901143400204
Calcium supplements for the prevention of colorectal adenomas. Calcium Polyp Prevention Study Group.
P356
Q34487340-8D6A678B-5786-4F84-A45D-647C0690D329
P356
NEJM199901143400204
http://dx.doi.org/10.1056/NEJM199901143400204