2Khan S,Pawlak SE,Eggenberger JC.Acute colonic perforation assiociated with colorectal[J].Am Surg,2001,67(3):261~264.
3Chen Hs.SM sheen-chen.Obstruction and perforation incolorectal adenocarcinoma:an analysis of prognosis and current trends[J].Surgery,2000,127(4):370~376.