Colorectal carcinoma: why is there a lower incidence in Nigerians when compared to Caucasians?
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Carcinoma of the colon and rectum is the 2nd commonest cancer in the United States; the leading cancer being lung cancer. It has been estimated that 130,200 new cases of colorectal cancer will be diagnosed annually while 56,300 sufferers will die from the dise... ...
