RT Journal Article SR Electronic T1 Epidural Infusion of Fentanyl for Postoperative Analgesia: Analysis of 38 Patients JF Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 34 OP 34 DO 10.1136/rapm-00115550-199318011-00033 VO 18 IS Suppl 1 A1 Pires, Antonio Martins D. A1 da Silva, Grace Haber YR 1993 UL http://rapm.bmj.com/content/18/Suppl_1/34.abstract AB