1Jacobs M, Wedeja JC, Goldstein HS, et al. Minimally invasive color resection(laparoscopic colorectomy). Surg Laparosc Endosc, 1991:1144.
2Awaral JF. The experimental development of the ultrasonically activated scaplel for laparoscopic use. Surg Laparosc Endosc, 1996, 4(2):92.
3Kwok SPY,Lau WY,Carey PD,et al. Prosective evaluation of laparoscopic--assisted large bowel excision for cancer. Ann Surg, 1996,223 : 170.
4Hartley JE, Mehigan BJ, Mcdonald AW, et al. Patterns of recurrence and suvival after laparoscopic and conventional rescetion of colorectal carcinoma. Ann Surg, 2000,232 : 181.