1Ken-ichiro Aizawa,Toshio Kanai,Yoshiro Saikawa,Tsukasa Takabayashi,Yukio Kawano,Naoto Miyazawa,Tetsuya Yamamoto. A Novel Approach to the Prevention of Postoperative Delirium in the Elderly After Gastrointestinal Surgery[J] 2002,Surgery Today(4):310～314
