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A randomized trial of chemoradiotherapy and chemotherapy after resection of pancreatic cancer ［ J ］ . N Engl J Med，2004，350.Pancreaticoduodenectomy with vascular resection：margin status and survival duration ［ J ］ . J Gastrointest Surg，2004，8.12 .郑民华.腹腔镜技 ......