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二级参考文献3
1Masatoshi Makuuchi M.D.,Hiroshi Hasegawa M.D.,Susumu Yamazaki M.D.,Kenichi Takayasu M.D.,Noriyuki Moriyama M.D.. The use of operative ultrasound as an aid to liver resection in patients with hepatocellular carcinoma[J] 1987,World Journal of Surgery(5):615～621
