2ReissR,Deutsch A,Nudelman.Surgical problems in octogenarians:epidemiological analysis of 108s consecutive admissions[J].World J Surg,1992,16:1017-1021.
3Clark AJ,Stockton D,Elder A,et al.Assessment of outcome after colorectal canar resection in elderly as a rationale for screening and early eletection[J].Br J Surg,2004,91:1345-1351.
4MatsushitaI,Hanairl,Kajimura M,et al.Should gastric cancer patient more 80 years of age undergo surgery:Comparison with patients not treated surgically concerning prognosis and quality of life[J].J Clin.Gastroenterol,2002,35:29-34.
5BarrierA,FerrroL,HouryS,et al.Rectal cancer surgery in patients more than 80 years of age[J].The Ame J Surg,2003,185:54-57.