6Mitry E, Benhamiche AM, Jouve JL, et al. Colorectal adenocarcinoma inpatients under 45 years of age: comparison with older patients in a well - defined French population. Dis Colon Rectum,2001 ;44(3) :380～387
7Okuno MD. Colorectal carcinoma in patients younger than 40 of age: Montpezlier cancer institute experience with 78 patients. Cancer, 1988;61 (4) :8
8Palmer ML, Haerreral, Peter NJ. Colorectal adenocarcinoma in patients less than 40 years of age. Dis Colon Rectum, 1991 ;34(4):343～ 346
9Okuno M, Ikebara T, Nagayama M, et al. Colorectal carcinoma in young adults. Am J Surg, 1987; 154 (3): 264-268
2Foley TA,Earnest F 4th,Nathan MA,et al.Differentiation of nonperforated from perforated appendicitis:accuracy of diagnosis and relationship of CT findings to length of hospital stay[J].Radiology,2005,235(1):89-96.
