1Obrand DI, Gordon PH. Incidence and patterns of recurrence following curativere section for colorectal carcinoma. Dis Colon Rectum, 1997, 40: 15-24.
2Ngoi SS, Staiano Coico L, Godwin TA, et al. Abnormal DNA ploidy and proliferative patterns in superficial colonic epitheliumadjacent to colorectal cancer. Cancer,1990, 66: 953-959.
3Beranek M, Bures J, Palicka V, et al. A relationship between K-ras gene mutations and some clinical and histologic variables in patients with primary colorectal carcinoma. Clin Chem Lab Med, 1999,37: 723-727.
4Martinez S R, Chen S L, Bilchik A J. Treatment disparities in Hispanic rectal cancer patients: a SEER database study[J]. Am Surg, 2006, 72(10) : 906 -908.
5Daniels I R, Strassburg J, Moran B J. The need for future surgical low rectal cancer studies [ J ]. Colorectal Dis, 2006, 8 ( Suppl 3 ) : 25 - 29.
6Guerriero O, Tufano G, Pennetti L, et al. Sphinctersaving surgery in low rectal cancer[J]. Chir Ital, 2006, 58 (1) : 83 -92.