Effects of epidural analgesia and intravenous analgesia on early postoperative cognitive dysfunction after limb orthopedics surgery in the elderly

Wang Shi-ying, Kong Ling, Bi Guang-yan, Wei Guang-wu

Chinese Journal of Tissue Engineering Research . 2011, (35): 6514 -6517 . DOI: 10.3969/j.issn.1673-8225.2011.35.013