4Bryant RL,,Stevenson OR,Huntoh OW,et al.Primarymalignant retroperitoneal tunuors. The American Journal of Surgery . 1982
5Lewis JJ,Leung D,Wodruff JM,et al.Retroperitoneal soft-tissue sarcoma: analysis of 500 patients treated and followed at a single institution. Annals of Surgery . 1998
6Dalen TV,Plooij JM,Coevorden FV,et al.Long-term prognosis ofprimary retroperitoneal soft tissue sarcoma. European Journal of Surgical Oncology . 2007
4Erzen D, Sencar M, Novak J. Retroperitoneal sarcoma: 25years of experience with aggressive surgical treatment at the In-stitute of Oncology,Ljubljana[J]. J Surg Oncol, 2005,91(1) :1-9.
5Alldinger I, Yang Q, Pilarsky C, et al. Retroperitoneal softtissue sarcomas: prognosis and treatment of primary and recur-rent disease in 117 patients [J]. Anticancer Res, 2006,26(2): 1577-1578.
6Lewis J J, Leung D, Woodruff JM, et al. Retroperitoneal soft-tissue sarcoma: analysis of 500 patients treated and followed at a single institution[J]. Ann Surg, 1998,228 (3) :355-365.
7Eilber FR, Eckardt J. Surgical management of soft tissue sarcomas[J]. Semin Oncol, 1997,24 (5) :526-533.