DOI:
10.1055/s-00000049
Clinics in Colon and Rectal Surgery
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References
Engels EA, Pfeiffer RM, Ricker W, Wheeler W, Parsons R, Warren JL.
Use of Surveillance, Epidemiology, and End Results-Medicare data to conduct case-control studies of cancer among the US elderly.
Am J Epidemiol 2011;
174 (07) 860-870
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