الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Colorectal cancer represents a major public health problem as it ranks third in frequency in men and second in women . However colorectal cancer is the fourth leading cause of cancer mortality because it has a better prognosis than more common cancer . Colorectal cancer account for about 11% of new cancer diagnoses . If detected early the five - year survival rate of patients with colorectal cancer is 90%.