7Testini M.Catalano G Jr Macarini L . et al. Diagnosis and surgical treatment of retroperitoneal tumors [ J ]. Int Surg. 1996.81 ( 1 ) : 88-93.
8Wright JG. Nicholson R.Schuller DE.or al. Resection of the internal carotid artery and replacement with greater saphcnoos vein:a safe procedure for en bloc cancer resections with carotid involvcment [J].J Vase Surg.1996.23(6) :775-782.
9Nakao A. Harada A. Nonami T . et al. Clinical significance of portal invasion by pancreatic head carcinoma [ J ]. Surgery. 1995. 117( 1 ) :50-55.
10Tashiro S. Ucnio R. Hiralka J ,et al. Surgical indications and significance of porery and resecion in biliary and pancreatic cancer[ J ].Surgery 1991 , 109 ( 4 ) : 481-487.